FIG. 1 is a perspective view of a first embodiment of a head for electric toothbrush;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a right-side elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a left-side elevation view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIGS. 8 and 9 are enlarged fragmental perspective views thereof.
FIG. 10 is a perspective view of a second embodiment of a head for electric toothbrush;
FIG. 11 is a front elevation view thereof;
FIG. 12 is a right-side elevation view thereof;
FIG. 13 is a rear elevation view thereof;
FIG. 14 is a left-side elevation view thereof;
FIG. 15 is a top plan view thereof;
FIG. 16 is a bottom plan view thereof;
FIG. 17 is an enlarged fragmental perspective view thereof.
FIG. 18 is a perspective view of a third embodiment of a head for electric toothbrush;
FIG. 19 is a front elevation view thereof;
FIG. 20 is a right-side elevation view thereof;
FIG. 21 is a rear elevation view thereof;
FIG. 22 is a left-side elevation view thereof;
FIG. 23 is a top plan view thereof;
FIG. 24 is a bottom plan view thereof;
FIG. 25 is an enlarged fragmental perspective view thereof.
FIG. 26 is a perspective view of a fourth embodiment of a head for electric toothbrush;
FIG. 27 is a front elevation view thereof;
FIG. 28 is a right-side elevation view thereof;
FIG. 29 is a rear elevation view thereof;
FIG. 30 is a left-side elevation view thereof;
FIG. 31 is a top plan view thereof;
FIG. 32 is a bottom plan view thereof;
FIG. 33 is an enlarged fragmental perspective view thereof.
FIG. 34 is a perspective view of a fifth embodiment of a head for electric toothbrush;
FIG. 35 is a front elevation view thereof;
FIG. 36 is a right-side elevation view thereof;
FIG. 37 is a rear elevation view thereof;
FIG. 38 is a left-side elevation view thereof;
FIG. 39 is a top plan view thereof;
FIG. 40 is a bottom plan view thereof;
FIG. 41 is an enlarged fragmental perspective view thereof.
FIG. 42 is a perspective view of a sixth embodiment of a head for electric toothbrush;
FIG. 43 is a front elevation view thereof;
FIG. 44 is a right-side elevation view thereof;
FIG. 45 is a rear elevation view thereof;
FIG. 46 is a left-side elevation view thereof;
FIG. 47 is a top plan view thereof;
FIG. 48 is a bottom plan view thereof;
FIG. 49 is an enlarged fragmental perspective view thereof.
FIG. 50 is a perspective view of a seventh embodiment of a head for electric toothbrush;
FIG. 51 is a front elevation view thereof;
FIG. 52 is a right-side elevation view thereof;
FIG. 53 is a rear elevation view thereof;
FIG. 54 is a left-side elevation view thereof;
FIG. 55 is a top plan view thereof;
FIG. 56 is a bottom plan view thereof;
FIG. 57 is an enlarged fragmental perspective view thereof.
FIG. 58 is a perspective view of an eighth embodiment of a head for electric toothbrush;
FIG. 59 is a front elevation view thereof;
FIG. 60 is a right-side elevation view thereof;
FIG. 61 is a rear elevation view thereof;
FIG. 62 is a left-side elevation view thereof;
FIG. 63 is a top plan view thereof;
FIG. 64 is a bottom plan view thereof;
FIG. 65 is an enlarged fragmental perspective view thereof.
FIG. 66 is a perspective view of a ninth embodiment of a head for electric toothbrush;
FIG. 67 is a front elevation view thereof;
FIG. 68 is a right-side elevation view thereof;
FIG. 69 is a rear elevation view thereof;
FIG. 70 is a left-side elevation view thereof;
FIG. 71 is a top plan view thereof;
FIG. 72 is a bottom plan view thereof;
FIG. 73 is an enlarged fragmental perspective view thereof.
FIG. 74 is a perspective view of a tenth embodiment of a head for electric toothbrush;
FIG. 75 is a front elevation view thereof;
FIG. 76 is a right-side elevation view thereof;
FIG. 77 is a rear elevation view thereof;
FIG. 78 is a left-side elevation view thereof;
FIG. 79 is a top plan view thereof;
FIG. 80 is a bottom plan view thereof;
FIG. 81 is an enlarged fragmental perspective view thereof.
FIG. 82 is a perspective view of an eleventh embodiment of a head for electric toothbrush;
FIG. 83 is a front elevation view thereof;
FIG. 84 is a right-side elevation view thereof;
FIG. 85 is a rear elevation view thereof;
FIG. 86 is a left-side elevation view thereof;
FIG. 87 is a top plan view thereof;
FIG. 88 is a bottom plan view thereof;
FIG. 89 is an enlarged fragmental perspective view thereof.
FIG. 90 is a perspective view of a twelfth embodiment of a head for electric toothbrush;
FIG. 91 is a front elevation view thereof;
FIG. 92 is a right-side elevation view thereof;
FIG. 93 is a rear elevation view thereof;
FIG. 94 is a left-side elevation view thereof;
FIG. 95 is a top plan view thereof;
FIG. 96 is a bottom plan view thereof;
FIG. 97 is an enlarged fragmental perspective view thereof.
FIG. 98 is a perspective view of a thirteenth embodiment of a head for electric toothbrush;
FIG. 99 is a front elevation view thereof;
FIG. 100 is a right-side elevation view thereof;
FIG. 101 is a rear elevation view thereof;
FIG. 102 is a left-side elevation view thereof;
FIG. 103 is a top plan view thereof;
FIG. 104 is a bottom plan view thereof;
FIG. 105 is an enlarged fragmental perspective view thereof.
FIG. 106 is a perspective view of a fourteenth embodiment of a head for electric toothbrush;
FIG. 107 is a front elevation view thereof;
FIG. 108 is a right-side elevation view thereof;
FIG. 109 is a rear elevation view thereof;
FIG. 110 is a left-side elevation view thereof;
FIG. 111 is a top plan view thereof;
FIG. 112 is a bottom plan view thereof;
FIG. 113 is an enlarged fragmental perspective view thereof.
FIG. 114 is a perspective view of a fifteenth embodiment of a head for electric toothbrush;
FIG. 115 is a front elevation view thereof;
FIG. 116 is a right-side elevation view thereof;
FIG. 117 is a rear elevation view thereof;
FIG. 118 is a left-side elevation view thereof;
FIG. 119 is a top plan view thereof;
FIG. 120 is a bottom plan view thereof; and,
FIG. 121 is an enlarged fragmental perspective view thereof.
Broken lines are used in the drawings to designate environmental structures or parts of the head of the electric toothbrush that form no part of the claim.