| All Patents in class 310/50 |
Patents 16 -
30
of 73
      |
| Number | Date | Patentee | Title | Type |
| 1,475,153 | Nov. 20, 1923 | H. Athenas | Portable electric combination drill | handheld power drills |
| 1,492,095 | Apr. 29, 1924 | S.D. Black, A.G. Decker | Electrically-driven tool | handheld power tools |
| 1,497,067 | Jun. 10, 1924 | W.P. Casey | Electric handsaw | circular saws |
| 1,514,894 | Nov. 11, 1924 | R.L. Carter | Portable routing and profiling machine | handheld routers |
| 1,529,910 | Mar. 17, 1925 | R.A. Norling | Grip-handle switch for electric drills | handheld power drills |
| 1,539,069 | May 26, 1925 | B.W. Brockett | Handle for motor hand tools | handheld power drills |
| 1,546,474 | Jul. 21, 1925 | E.L. Connell | Electric switch and handle | handheld power drills |
| 1,548,020 | Aug. 04, 1925 | S.D. Black, A.G. Decker | Reversing means for electric tools | handheld power tools |
| 1,564,342 | Dec. 08, 1925 | O.P. Wodack, J.J. Bebhardt | Portable power-driven tool | handheld power drivers |
| 1,577,976 | Mar. 23, 1926 | J.S. Knowlson, R.S. McKeage | Power-driven tool-operating device | handheld power drills |
| 1,581,927 | Apr. 20, 1926 | G.L. Kollock | Two-speed gearing for electric drill | handheld power drills |
| 1,596,013 | Aug. 17, 1926 | J.J. Gebhardt | Control mechanism for electric tools | electric switches |
| 1,650,911 | Nov. 29, 1927 | F. Schneider | Portable hand tool | |
| 1,651,995 | Dec. 06, 1927 | W.P. Casey | Electric hand saw | handheld circular saws |
| 1,679,185 | Jul. 31, 1928 | B.W. Sweet | Screw driver | |
