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