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| Patents for G. M. Chamberlain | |||||
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| Number | Date | Patentee | Title | Type | |
| 394,423 | Dec. 11, 1888 | D.B. Wesson | Process of forming dovetails in wood | dovetailing machines | |
| 401,292 | Apr. 09, 1889 | C.M. Mumford | Extensible Measuring Stick | ||
| 410,240 | Sep. 03, 1889 | H. Hammond | Wrench | screw adjust wrenches | |
| 466,553 | Jan. 05, 1892 | C.H. Baush | Head-operating mechanism for the tool-spindles of drilling-machines, &c. | drill presses | |
| 469,688 | Mar. 01, 1892 | A.J. Ferris | Depthstop for Rabbet Planes | plane depth stops | |