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The ornamental design for a heat exchanger, as shown and described. |
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FIG. 1 is a front elevational view of a heat exchanger showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left side elevational thereof, the right side being a mirror image;
FIG. 6 is a front perspective view thereof, the rear being a mirror image.
A rear perspective view thereof is the same as a front perspective view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jul 30 1985 | AOKI, HISAO | SANDEN CORPORATION, 20 KOTBUKI-CHO, ISESAKI-SHI, GUNMA, JAPAN, A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004446 | /0028 | |
| Aug 19 1985 | Sanden Corporation | (assignment on the face of the patent) | / |
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