| All Patents in class 403/325 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 62,057 | Feb. 12, 1867 | J.H. Nellis | Attaching bits to braces |
 | 78,652 | Jun. 09, 1868 | J.W. Craig | Improvement in braces for bits |
 | 97,455 | Nov. 30, 1869 | A. Stanley | Bit-stock |
 | 139,174 | May 20, 1873 | F.H. Merrill | Improved Pipe Tongs |
 | 1,138,465 | May 04, 1915 | G.O. Leopold, T.J. Fegley | Chuck |
 | 3,208,318 | Sep. 28, 1965 | P.M. Roberts | Quick Release For Socket Wrenches |
| | 4,794,828 | Jan. 03, 1989 | G.E. Olson | Quick Release Mechanism for Ratchet Wrench |
| | 6,199,457 | Mar. 13, 2001 | F. Mikic, estate of (deceased), J.H. Hoff | Quick Release Mechanism for Socket Drive Tool |
