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The ornamental design of a hearing protective earplug, as shown and described. |
FIG. 1 is a perspective view of a hearing protective earplug showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front elevational view thereof, the back elevational view being a mirror image; and,
FIG. 5 is a right side elevational view thereof, the left side elevational view being a mirror image.
Marino, Joseph A., Esler, J. Scott, Vernazza, R. William
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DE3304362, |
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Apr 15 1994 | Cabot Safety Intermediate Corporation | (assignment on the face of the patent) | / | |||
May 27 1994 | ESLER, J SCOTT | Cabot Safety Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007015 | /0617 | |
May 27 1994 | MARINO, JOSEPH A | Cabot Safety Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007015 | /0617 | |
May 27 1994 | VERNAZZA, R WILLIAM | Cabot Safety Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007015 | /0617 | |
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