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| Patents for Frederick E. Schmitt | |||||
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| Number | Date | Patentee | Title | Type | |
| 525,087 | Aug. 28, 1894 | F.E. Schmitt | Polishing-cylinder for sandpapering-machines | sanding machines | |
| 525,472 | Sep. 04, 1894 | F.E. Schmitt | Cylinder-adjusting mechanism for polishing-machines | sanding machines | |
| 595,445 | Dec. 14, 1897 | F.E. Schmitt | Cylinder adjustment for sanders | sanding machines | |
| 596,232 | Dec. 28, 1897 | F.E. Schmitt | Roller-frame adjustment for sanders | sanding machines | |