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Patents for N. A. Clark | |||||
Number | Date | Patentee | Title | Type | |
288,432 | Nov. 13, 1883 | J.M. Harland | Wrench | screw adjust wrenches | |
302,166 | Jul. 15, 1884 | T.C. Sexton, J.H. Sexton | Improvements in Ratchet-Wrenches | ratchet wrenches | |
304,945 | Sep. 09, 1884 | E.J. Manville | Screw Threading Machine | metal threading machines |