| Patents Granted on 1957-10-08 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 2,808,637 | Oct. 08, 1957 | A.F. Hudson | Pyramidal Tool and Holder | insert tool holders |
| 2,808,651 | Oct. 08, 1957 | C.W. Johnson | Caliper for a Lens or the Like | calipers |
| 2,808,737 | Oct. 08, 1957 | E.P. Bullard, III | Variable-Speed Transmission and Method of Operation | |
| 2,808,745 | Oct. 08, 1957 | R.E. Blomquist, W.S. Swanson | Chamfering machine | |
| 2,808,746 | Oct. 08, 1957 | R.E. Blomquist | Work handling mechanism for machine tools | |
| 2,808,749 | Oct. 08, 1957 | A.R. Lampke | Gear Operated Power Wrench | ratchet wrenches |
| 2,808,753 | Oct. 08, 1957 | R.W. Brown | Loading Mechanism | workpiece changers and storage mechanisms |
| 2,809,045 | Oct. 08, 1957 | E.H. Johnson | Lever Actuated Chuck | |
| 2,809,333 | Oct. 08, 1957 | E.K. Wagner | Constant Chip Thickness Motor Control System for Machine Tools | vertical boring mills |
