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All Patents of Type: bolt heading machines | |||||
Number | Date | Patentee | Title | Type | |
146,374 | Jan. 13, 1874 | J.R. Abbe | Bolt-Heading Machine | bolt heading machines | |
258,641 | May 30, 1882 | J.T. Golcher, G. Golcher | Machine for Forging Carriage Bolts | forging machines | |
364,208 | Jun. 07, 1887 | J.R. Blakeslea | Bolt Heading Machine | bolt heading machines | |
1,381,509 | Jun. 14, 1921 | F.J. Schwimmer | Bolt-Heading Machine | bolt heading machines |