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| Patents for American Mfg. Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 1,208,406 | Dec. 12, 1916 | C.O. Throp | Valve Remover | |
 | 1,234,967 | Jul. 31, 1917 | C.O. Throp | Valve Removing Tool | |
 | 2,751,945 | Jun. 26, 1956 | R.W. Beach | Router guide mechanism | |