All Patents in class 74 |
Patents 2341 -
2355
of 3488
|
Number | Date | Patentee | Title | Type |
1,659,304 | Feb. 14, 1928 | R.L. Rickwood, O.E. Schauer | Split Sleeve Frictional Reverser | metalworking power transmission |
1,659,426 | Feb. 14, 1928 | C.M. Conradson | Milling Machine | milling machines |
1,659,437 | Feb. 14, 1928 | G.E. Merryweather | Double Take-Off Gear | metalworking power transmission |
1,660,137 | Feb. 21, 1928 | A.M. Sosa, A.E. Robinson | Drilling Machine | radial drill presses |
1,660,477 | Feb. 28, 1928 | C.M. Conradson | Radial Drilling Machine | radial drill presses |
1,660,579 | Feb. 28, 1928 | J. Roth | Hammer drill attachment for electric drill | handheld power tool accessories |
1,661,131 | Feb. 28, 1928 | G.B. Duffield | Expansible Collapsible Element | steam engine packing |
1,662,660 | Mar. 13, 1928 | H.C. Clay | Controller for Variable Speed Transmission | industrial machine speed and direction changing mechanisms |
1,662,959 | Mar. 20, 1928 | K.H. Crumrine | Tool Post | lathe tool holders and tool posts |
1,663,267 | Mar. 20, 1928 | V.V. Colby | Means for cutting | scrollsaws |
1,663,493 | Mar. 20, 1928 | H.C. Clay | Control for Variable Speed Mechanism | industrial machine speed and direction changing mechanisms |
1,664,851 | Apr. 03, 1928 | G.M. Class | Tool Post | lathe tool holders and tool posts |
1,664,889 | Apr. 03, 1928 | D.C. Klausmeyer | Detachable Gear Unit | metalworking machine gearing |
1,664,919 | Apr. 03, 1928 | E. Ek | Operating device | wood planer accessories |
1,666,422 | Apr. 17, 1928 | D.C. Klausmeyer | Master Radial Drill Speed Box | metalworking speed changing mechanisms |