|
The ornamental design for an earplug, as shown. |
FIG. 1 is a front view of an earplug showing my new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a plan view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a cross-sectional view taken along line5--5 of FIG. 1;
FIGS. 6 and 7 are cross-sectional views taken along lines 6--6 and 7--7 respectively of FIG. 3.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jan 05 1979 | Daiko Co., Ltd. | (assignment on the face of the patent) | / |
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Date | Maintenance Schedule |