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| Patents for F. W. Schaefer | |||||
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| Number | Date | Patentee | Title | Type | |
| 861,768 | Jul. 30, 1907 | A.S. Remsberg | Tool-holder | lathe tool holders and tool posts | |
| 1,095,750 | May 05, 1914 | R.A. Trace | Cake-former | seed or nut oil apparatus | |
| 1,106,597 | Aug. 11, 1914 | R.A. Trace | Cooker | seed or nut oil apparatus | |
| 1,115,133 | Oct. 27, 1914 | R.A. Trace | Gate-controlling device for cookers | seed or nut oil apparatus | |