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| Patents for Wilson-Maeulen Co., Inc. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,103,640 | Jul. 14, 1914 | C.H. Wilson | Thermo-electric pyrometer | |
| 1,133,597 | Mar. 30, 1915 | C.H. Wilson | Recording instrument | ||
| 1,411,396 | Apr. 04, 1922 | C.J. Brown, C.H. Wilson | Electrical-resistance thermometer | ||
| 1,690,517 | Nov. 06, 1928 | C.J. Brown, C.H. Wilson | Electrical controller and recorder | ||
| 1,762,497 | Jun. 10, 1930 | C.H. Wilson | Automatic hardness tester | ||
| 1,762,498 | Jun. 10, 1930 | C.H. Wilson | Hardness-testing method and apparatus | ||