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| Patents for Theodore G. Ellis | |||||
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| Number | Date | Patentee | Title | Type | |
| 267,660 | Nov. 21, 1882 | H. Avery | Surface Gage | surface gauges | |
| 271,746 | Feb. 06, 1883 | A. Sequeira | Centering Gage | center marking gauges | |
| 272,478 | Feb. 20, 1883 | R.F. Rice | Tap Wrench | tap wrenches and die stocks | |
| 275,431 | Apr. 10, 1883 | C.M. Spencer | Metal Screw Machine | screw machines | |