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| All Patents in class 409/174 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 234,635 | Nov. 16, 1880 | L. Wenchel | Apparatus for Turning Cutters for Molding Machines | ||
| 540,074 | May 28, 1895 | H.G. Shepard | Machine for recessing wheel-rims | ||
| 756,405 | Apr. 05, 1904 | W. Porteous | Milling-Machine | ||
 | 2,273,399 | Feb. 17, 1942 | C.B. De Vlieg | Machine tool | |
| 4,512,068 | Apr. 23, 1985 | T.W. Piotrowski | Pallet Receiver with Compliant Pin and Socket Registration | ||