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| All Patents in class 407/15 | |||||
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| Number | Date | Patentee | Title | Type | |
| 137,769 | Apr. 15, 1873 | H.E. Forrest | Machines for Turning Carriage Axles | axle lathes | |
| 2,173,074 | Sep. 12, 1939 | M. Romaine | Broaching Tool | broaches | |
| 2,255,221 | Sep. 09, 1941 | F.J. Lapointe | Method and means for surface broaching | broaching machines | |
| 2,277,607 | Mar. 24, 1942 | G.R. Squibb, H.L. Pope | Broaching Tool | broaches | |