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All Patents in class 409/307 | |||||
Number | Date | Patentee | Title | Type | |
2,532,591 | Dec. 05, 1950 | J.B. Armitage | Slotting Machine | milling machine accessories | |
2,786,397 | Mar. 26, 1957 | W.P. McIlvanie | Keyseating machine | key seating machines | |
3,195,414 | Jul. 20, 1965 | J.R. Bashor | Fully automatic keyway shaper | keyway cutting machines |