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The ornamental design for a heat saving unit for use with furnaces or the like, substantially as shown and described. |
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FIG. 1 is a front elevational view of a heat saving unit for use with furnaces or the like showing my new design;
FIG. 2 is a side elevational view taken from the right of FIG. 1;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof.
Deetz, Niles Ellis, Garcia, Arcadio Alvarez
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 15 1975 | Stack Heater's Inc. | (assignment on the face of the patent) | / |
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