January 1942 Environmental control apparatus Trademarks by day
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| 18 | 19 | 20 | 21 | 22 | 23 | 24 |
| 25 | 26 | 27 | 28 | 29 | 30 | 31 |
Environmental control apparatus Trademarks filed in January 1942
W
Filed: January 24, 1942
DRAFT DIVERTERS FOR HOT WATER HEATERS, GAS FURNACES, AND UNIT HEATERS
Owned by: WILDER MANUFACTURING CO., THE
Serial Number: 71450465
