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The ornamental design for a piston, as shown and described. |
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FIG. 1 is an elevational view of one end of a piston, showing our new design, the opposite end being a mirror image thereof;
FIG. 2 is an elevational view of one side thereof, the opposite side being a mirror image;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a top plan view thereof.
Parker, David A., Collyear, John G.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 26 1984 | COLLYEAR, JOHN G | AE PLC, A BRITISH CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 004245 | /0482 | |
| Mar 26 1984 | PARKER, DAVID A | AE PLC, A BRITISH CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 004245 | /0482 | |
| Mar 30 1984 | AE PLC | (assignment on the face of the patent) | / |
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