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| All Patents in class 92/103M | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 6,668 | Aug. 28, 1849 | J. Garside, H.J. Betjemann | Machinery for cutting screws in bedsteads | |
| 1,843,068 | Jan. 26, 1932 | R. Gradhe, A. Von Wangenheim | Valve | ||
| 2,520,386 | Aug. 29, 1950 | E.J. Dillman | Refrigeration Expansion Valve | ||