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The ornamental design for a hearing protection device, as shown and described. |
FIG. 1 is a rear perspective view of a first embodiment of the hearing protection device;
FIG. 2 is a front elevational view thereof, it being understood that when rotated, all undisclosed surfaces in elevation are a mirror image;
FIG. 3 is a rear end view of the device of FIG. 1;
FIG. 4 is a front end view of the device of FIG. 1;
FIG. 5 is a rear perspective view of a second embodiment of the hearing protection device;
FIG. 6 is a front elevational view thereof, it being understood that when rotated, all undisclosed surfaces in elevation are a mirror image;
FIG. 7 is a rear end view of the device of FIG. 5;
FIG. 8 is a front end view of the device of FIG. 5;
FIG. 9 is a rear perspective view of a third embodiment of the hearing protection device;
FIG. 10 is a front elevational view thereof, it being understood that when rotated, all undisclosed surfaces in elevation are a mirror image;
FIG. 11 is a rear end view of the device of FIG. 9;
FIG. 12 is a front end view of the device of FIG. 9;
FIG. 13 is a rear perspective view of a fourth embodiment of the hearing protection device;
FIG. 14 is a front elevational view thereof, it being understood that when rotated, all undisclosed surfaces in elevation are a mirror image;
FIG. 15 is a rear end view of the device of FIG. 13; and,
FIG. 16 is a front end view of the device of FIG. 13.
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Aug 15 1996 | Cabot Safety Intermediate Corporation | (assignment on the face of the patent) | / | |||
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