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| Patents for William Oesterlein | |||||
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| Number | Date | Patentee | Title | Type | |
| 717,605 | Jan. 06, 1903 | W. Oesterlein | Cutter and tool grinder | tool grinders | |
| 1,210,830 | Jan. 02, 1917 | W. Oesterlein | Belt-shifter mechanism | industrial machine pulleys and belt drive mechanisms | |
| 1,224,954 | May 08, 1917 | W. Oesterlein | Belt-shifter | industrial machine pulleys and belt drive mechanisms | |