| All Patents in class 81/57.13 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 1,341,701 | Jun. 01, 1920 | G.D. Alexander | Power-driven tool-driver |
 | 2,719,447 | Oct. 04, 1955 | W.B. Ford | Ratchet Wrench |
 | 2,808,749 | Oct. 08, 1957 | A.R. Lampke | Gear Operated Power Wrench |
 | 2,831,384 | Apr. 22, 1958 | M.P. Weiss | Plier-Type Gear Operated Ratchet Tool |
| | 5,022,289 | Jun. 11, 1991 | J.K. Butzen | Ratchet Tool with Flattened Pocket |
| | 5,142,952 | Sep. 01, 1992 | K.C. Happ, M.S. Scolaro, G.A. Putney | Ratchet Tool |
| | 5,231,901 | Aug. 03, 1993 | M.S. Scolaro, G.A. Putney | Ratchet Tool |
| | 5,237,885 | Aug. 24, 1993 | G.A. Putney, K.C. Happ, M.S. Scolaro | Ratchet Tool |
