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| Patents for William S. Robinson | |||||
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| Number | Title | Classification(s) | |||
| 5,653X | Manufacture of Harness Trimmings and Carriage Ornaments | ||||
| 487,892 | Beam Compass | 33/27.033, 403/376 | |||
| 1,252,031 | Planer Tool Holder | 409/345 | |||
| 1,277,481 | Tool Holder | 407/10 | |||