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The ornamental design for switch key, substantially as shown and described. |
FIG. 1 is a perspective view of a switch key showing our new design;
FIG. 2 is a side elevational view of the switch key on an enlarged scale;
FIG. 3 is a front elevational view of the switch key on an enlarged scale;
FIG. 4 is a top plan view of the switch key on an enlarged scale;
FIG. 5 is a side elevational view of the switch key similar to FIG. 2, but with the bottom prongs shown;
FIG. 6 is a front elevational view of the switch key on a greatly enlarged scale;
FIG. 7 is a rear end elevational view of the switch key on a greatly enlarged scale; and
FIG. 8 is a bottom plan view of the switch key on a greatly enlarged scale.
The prongs are omitted from the switch key in FIGS. 1, 2 and 3 for clarity of disclosure, it being understood that the _switch key of our design is shown completely in FIGS. 5, 6, and 7. A switch into which the switch key of our design may be _inserted is shown in broken lines in FIGS. 1, 2 and 3 for illustrative purposes only. _
Mitchell, Richard L., Heron, Thomas A.
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D311727, | Jan 28 1988 | MEC A S, A CORP OF DENMARK | Push button |
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Mar 31 1980 | Emerson Electric Co. | (assignment on the face of the patent) | / | |||
May 09 1980 | MITCHELL, RICHARD L | EMERSON ELECTRIC CO , A CORP OF MO | ASSIGNMENT OF ASSIGNORS INTEREST | 003961 | /0472 | |
May 09 1980 | HERON, THOMAS A | EMERSON ELECTRIC CO , A CORP OF MO | ASSIGNMENT OF ASSIGNORS INTEREST | 003961 | /0472 |
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