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| All Patents in class 409/163 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,101,544 | Dec. 07, 1937 | H.R. Isler | Milling Machine Transmission and Control Mechanism | milling machines | |
| 2,407,970 | Sep. 24, 1946 | J.J. Lenert, W.K. Andrew | Work Indexing Mechanism | indexers and dividers | |
| 2,749,812 | Jun. 12, 1956 | T.A. Wetzel | Ball Bearing Nut and Screw Mechanism | milling machines | |