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| Patents for Omer E. Robbins | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,111,299 | Mar. 15, 1938 | O.E. Robbins | Magnetic Sine Table | angle bars and angle plates | |
| FR-828,200 | May 11, 1938 | O.E. Robbins | Magnetic Sine Table | angle bars and angle plates | |