| All Patents in class 173/170 |
Patents 31 -
43
of 43
      |
| Number | Date | Patentee | Title | Type |
| 2,730,635 | Jan. 10, 1956 | J.A. McCabe | Portable electric drills | handheld power drills |
| 2,769,626 | Nov. 06, 1956 | A.F. Becker | Floor covering removing machine having yieldable flared cutters | |
| 2,815,834 | Dec. 10, 1957 | A.W. Mall | Portable power tool drive mechanism | impact wrenches |
| 2,876,369 | Mar. 03, 1959 | O. Doerner | Portable power drill | handheld power tools |
| 2,965,774 | Dec. 20, 1960 | E.C. Rangus | Casing structure for portable tool | handheld power tools |
| 2,976,436 | Mar. 21, 1961 | N. Anton | Multi-speed drill | handheld power drills |
| 2,984,210 | May 16, 1961 | G.H. Fuehrer | Shock-absorbing handle structure for pneumatic tools | |
| 3,003,773 | Oct. 10, 1961 | G.H. Fuehrer | Coupling assembly with positive lock | |
| 3,939,925 | Feb. 24, 1976 | I.R. Danielson | Throttle valve construction for percussion tool | |
| 4,006,784 | Feb. 08, 1977 | E.C. Dudek | Fluid operated power tool | |
| 6,082,468 | Jul. 04, 2000 | J.R. Brehm, D.S. Pusateri | Interchangeable Grips for Power Hand Tools | |
| 6,155,354 | Dec. 05, 2000 | J.R. Brehm, D.S. Pusateri | Interchangeable Grips for Power Hand Tools | |
| 6,796,389 | Sep. 28, 2004 | J.A. Pierman, D.S. Pusateri | Power Hand Tool and Removable Grip Therefor | |
