| All Patents in class 74/89.42 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 525,780 | Sep. 11, 1894 | J. Boynton | Mechanism for Taking Up Lost Motion | metalworking machine mechanisms |
| 1,955,954 | Apr. 24, 1934 | L.A. Dumser | Back-lash compensator | |
| 2,320,353 | Jun. 01, 1943 | H. Ernst, M.E. Martellotti | Power Transmission Mechanism | metalworking power transmission |
| 3,141,349 | Jul. 21, 1964 | D.I. McDonald | Ball Bearing Screw and Nut Mechanism | metalworking machine mechanisms |
| 4,487,087 | Dec. 11, 1984 | R. Johnstone | Ball Nut Having Adjustable Preload | metalworking machine mechanisms |
