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All Patents in class 408/156 | |||||
Number | Date | Patentee | Title | Type | |
1,615,676 | Jan. 25, 1927 | C.W. Bettcher | Die Head | tap and die holders | |
1,724,669 | Aug. 13, 1929 | F.J. Lapointe | Adjustable finishing end for broaches | broaches | |
1,745,660 | Feb. 04, 1930 | W.J. Denning | Expanding Arbor | reamers | |
1,971,230 | Aug. 21, 1934 | L. Nikoloff | Thread cutting die | tap wrenches and die stocks | |
1,988,046 | Jan. 15, 1935 | L. Nikoloff | Thread cutting die | tap wrenches and die stocks | |
2,206,941 | Jul. 09, 1940 | S.A. Cogsdill | Reamer | reamers |