| All Patents in class 464/178 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 486,052 | Nov. 08, 1892 | F. Mossberg | Antifriction Bearing | industrial machine bearings |
| 1,259,132 | Mar. 12, 1918 | E. Ritz, Jr. | Portable electric tool | handheld grinders |
| 1,289,375 | Dec. 31, 1918 | F.E. Bright | Grinding Machine | |
| 1,865,950 | Jul. 05, 1932 | C.H. Petskeyes | Coupling for sander drum shafts | sanding machines |
| 2,170,036 | Aug. 22, 1939 | R. Schumann | Small electric machine tool | handheld power tools |
| 2,262,512 | Nov. 11, 1941 | H.E. Musselman | Drill press | drill presses |
| 2,341,981 | Feb. 15, 1944 | H. Davids | Shaft Coupling Mechanism for Internal Combustion Engines | opposed piston engines |
| 2,586,359 | Feb. 19, 1952 | A.W. Mall | Flexible shaft coupling | |
