FIG. 1 is a front isometric view of a toothbrush drive train.
FIG. 2 is a rear isometric view thereof.
FIG. 3 is a front elevation view thereof.
FIG. 4 is a rear elevation view thereof.
FIG. 5 is a left side elevation view thereof.
FIG. 6 is a right side elevation view thereof.
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken lines illustrate portions of the toothbrush drive train that form no part of the claimed design.
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