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Patents for John H. Swartwout | |||||
Number | Date | Patentee | Title | Type | |
75,728 | Mar. 24, 1868 | S. Clement, G. Brooks | Improvement in machines for making excelsior | excelsior machines | |
RE9,122 | Mar. 23, 1880 | A.P. Barlow | Muley saw | reciprocating sawmills |