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| Patents for Fred. Haynes | |||||
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| Number | Date | Patentee | Title | Type | |
| 194,488 | Aug. 21, 1877 | B.L. Walker | Pipe And Nut Wrenches With Cutters | pipe jaw attachments for wrenches | |
| 195,173 | Sep. 11, 1877 | C. Burroughs, A.A. Sanborn | Monkey-Wrenches | quick adjust wrenches | |
| 198,633 | Dec. 25, 1877 | C.W. Le Count | Expanding Mandrels | mandrels and arbors | |