| All Patents in class 74/424.75 |
Patents 1 -
10
of 13
      |
| Picture | Number | Date | Patentee | Title |
 | 57,282 | Aug. 21, 1866 | T. Bowers | Improvement in Wooden Screws |
 | 201,372 | Mar. 19, 1878 | J.B. West | Improvement in screw-drivers |
 | 470,176 | Mar. 08, 1892 | F.P. Burkhardt | Mechanical movement |
 | 477,642 | Jun. 28, 1892 | C.E. Brunthaver | Ball-bearing for screw-nuts |
| | 699,013 | Apr. 29, 1902 | J.M. Rauhoff | Mechanism for converting motion |
| | 1,389,565 | Aug. 30, 1921 | J. Jensen | Machine element |
 | 1,409,844 | Mar. 14, 1922 | H. Gartelman | Valve Grinding Tool |
| | 1,897,666 | Feb. 14, 1933 | F.O. Hoagland | Machine Tool Spindle |
| | 1,989,611 | Jan. 29, 1935 | B. Sassen, A.H. Dall | Wave Screw |
| | 2,230,716 | Feb. 04, 1941 | F.W. Curtis | Table Drive for Milling Machines |
