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| Patents for Machinery Mfg. Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,318,691 | May 11, 1943 | L.B. Huthsing | Micrometer stop | jig boring machines | |
| 2,346,028 | Apr. 04, 1944 | L.B. Huthsing, C.M. Gregory | Variable speed belt drive | drill presses | |