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The ornamental design for an electric heater, as shown and described. |
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FIG. 1 is a perspective view of an electric heater showing our new design.
FIG. 2 is a top plan view thereof.
FIG. 3 is a front elevational view thereof.
FIG. 4 is a rear elevational view thereof.
The bottom surface of the device is substantially planar and unornamented.
Edin, Ronald E., Mathieu, Norman A., Aberizk, Philip G., Petersen, Ruth G.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 30 1976 | GTE Sylvania Incorporated | (assignment on the face of the patent) | / |
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