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| Patents for E. P. Robbins | |||||
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| Number | Date | Patentee | Title | Type | |
| 282,515 | Aug. 07, 1883 | G.H. Hackstadt | Spoke-tenoning machine | wheelwright | |
| 378,548 | Feb. 28, 1888 | E. Hopkins | Weather-Boarding Gage | clapboard markers | |