| All Patents in class 310/75R |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 227,623 | May 18, 1880 | W.W. Griscom | Electro-Magnetic Motor | DC motors |
| 644,591 | Mar. 06, 1900 | W.P. Freeman | Electric drill, &c. | drill presses |
| 781,062 | Jan. 31, 1905 | D.J. Hauss, C.W. Miles | Electric or hand-powered breast drill | handheld power tools |
| 805,499 | Nov. 28, 1905 | S.D. Stoycheff | Electric drill | handheld power drills |
| 938,709 | Nov. 02, 1909 | G.H. Rowe | Electromechanical device | impact riveters |
| 1,084,590 | Jan. 13, 1914 | H.L. Zabriskie | Electric motor | |
| 1,241,659 | Oct. 02, 1917 | E. Ritz, Jr. | Electric portable grinder | handheld grinders |
| 1,356,297 | Oct. 19, 1920 | A.T. Lochner | Power-hammer | |
| 1,423,511 | Jul. 25, 1922 | J.N. Baker | Routing tool | handheld routers |
| 1,575,307 | Mar. 02, 1926 | A.B. Bachmann | Flexible-shaft bench grinder | flexible shafts |
| 1,650,911 | Nov. 29, 1927 | F. Schneider | Portable hand tool | |
| 1,979,333 | Nov. 06, 1934 | E.R. Llewellyn | Power Transmitting Apparatus | metal shapers |
| 2,958,794 | Nov. 01, 1960 | T.C. Mann | Variable speed cutter drive | routing machines |
