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| Patents for Billings and Spencer Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 115,678 | Jun. 06, 1871 | W.H. Barwick | Improvement in Pipe-Wrenches | pipe tongs | |
| 215,039 | May 06, 1879 | C.E. Billings | Tap Wrench | tap wrenches and die stocks | |
| 349,496 | Sep. 21, 1886 | R. Hayden | Wire Cutter | pliers | |
| 738,015 | Sep. 01, 1903 | J.C. Dufresne | Adjustable Spanner Wrench | quick adjust wrenches | |