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The ornamental design for a combined grate and fireplace heat exchanger, as shown and described. |
FIG. 1 is a front perspective view of a combined grate and fireplace heat exchanger showing our 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;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a left side elevational view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a front perspective view of a second embodiment thereof;
FIG. 9 is a top plan view thereof;
FIG. 10 is a front elevational view thereof;
FIG. 11 is a rear elevational view thereof;
FIG. 12 is a left side elevational view thereof;
FIG. 13 is a right side elevational view thereof; and
FIG. 14 is a bottom plan view thereof.
Chesnut, Amos E., Parrigin, Albert J.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 21 1978 | Arvin Industries, Inc. | (assignment on the face of the patent) | / |
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