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| All Patents in class 74/132 | |||||
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| Number | Date | Patentee | Title | Type | |
| 115,589 | Jun. 06, 1871 | L.S. Fithian | Apparatus for Converting Motion | industrial machine mechanisms | |
| 333,226 | Dec. 29, 1885 | O.B. Howe | Mechanism for Converting Motion | industrial machine mechanisms | |
| 3,205,725 | Sep. 14, 1965 | H.R. Uhtenwoldt | Machine Tool Transmission | metalworking power transmission | |