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The ornamental design for a heating panel element, as shown. |
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FIG. 1 is a front elevational view of a heating panel element showing my new design.
FIG. 2 is a side elevational view thereof.
FIG. 3 is a top plan view thereof.
FIG. 4 is a bottom plan view thereof.
FIG. 5 is an enlarged top perspective view thereof.
FIG. 6 is an enlarged bottom perspective view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Aug 01 1975 | Sensotherm Aktiebolag | (assignment on the face of the patent) | / |
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