| All Patents in class 310/77 |
Patents 1 -
10
of 16
      |
| Picture | Number | Date | Patentee | Title |
| | 228,888 | Jun. 15, 1880 | W.W. Griscom | Regulating Electro-Magnetic Motors |
 | 1,060,966 | May 06, 1913 | H.A. Balcome | Electric motor and brake |
| | 1,502,840 | Jul. 29, 1924 | C.L. Beard | Electric clock |
 | 1,541,334 | Jun. 09, 1925 | A.J. Dremel | Electric hair clipper |
 | 1,649,060 | Nov. 15, 1927 | A.G. Decker | Portable power-driven rotary tool with spindle latch and hand-operated chuck |
 | 1,805,164 | May 12, 1931 | R.L. Carter | Shaft holder for applying chucks |
| | 1,823,555 | Sep. 15, 1931 | J.M. Naul | Electric phonograph motor |
 | 1,928,637 | Oct. 03, 1933 | R.A. Williams | Brake for woodworking machines |
 | 2,119,986 | Jun. 07, 1938 | A.J. Dremel | Electric motor |
 | 2,218,168 | Oct. 15, 1940 | T.L. Hedgpeth | Power tool |
