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The ornamental design for a heat exchange grid for an electric heater, substantially as shown and described. |
FIG. 1 is a perspective view of a heat exchange grid for an electric heater showing our new design;
FIG. 2 is a front elevational view, the rear elevation being a mirror image thereof;
FIG. 3 is an enlarged fragmentary sectional view, taken along line 3--3 of FIG. 2;
FIG. 4 is an enlarged fragmentary sectional view, taken along line 4--4 of FIG. 2;
FIG. 5 is an enlarged fragmentary sectional view, taken along line 5--5 of FIG. 2;
FIG. 6 is an enlarged fragmentary sectional view, taken along line 6--6 of FIG. 2.
Stover, John C., Boggs, Alben C.
Patent | Priority | Assignee | Title |
D304230, | Oct 21 1987 | Ceramic heating element | |
D530779, | Apr 22 2004 | Zalman Tech Co. Ltd | Radiator for a water cooler |
Patent | Priority | Assignee | Title |
2109279, | |||
2455839, | |||
2606274, | |||
2839657, | |||
3394387, | |||
239118, |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Aug 09 1976 | Emerson Electric Co. | (assignment on the face of the patent) | / |
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