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| All Patents in class 407/18 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,339,657 | May 11, 1920 | F.J. Lapointe | Finishing-broach | broaches | |
| 1,376,709 | May 03, 1921 | F.J. Lapointe | Spline-finishing broach | broaches | |
| 1,463,473 | Jul. 31, 1923 | F.J. Lapointe | Broaching tool | broaches | |
| 2,140,146 | Dec. 13, 1938 | H.E. Tautz | Broach | ||
| 2,173,074 | Sep. 12, 1939 | M. Romaine | Broaching Tool | broaches | |
| 2,277,607 | Mar. 24, 1942 | G.R. Squibb, H.L. Pope | Broaching Tool | broaches | |