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| All Patents in class 411/940 | |||||
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| Number | Date | Patentee | Title | Type | |
| 215,836 | May 27, 1879 | G.W. Rhines | Improvement in Lock-Nuts | auxiliary wrenches | |
| 679,927 | Aug. 06, 1901 | W.A. Warman | Method of Making Screws | ||
| 1,528,143 | Mar. 03, 1925 | F.B. Cockburn | Lock Nut | nut locks | |
| 1,616,286 | Feb. 01, 1927 | E.B. Stimpson | Bolt and nut assembly | nuts and bolts | |
| 1,862,623 | Jun. 14, 1932 | F.T. Harrington | Tool Holder | sheet metal stamping dies | |
| 2,250,324 | Jul. 22, 1941 | R.S. Baker | Band saw guard and guide | bandsaw guides | |