All Patents in class 74 |
Patents 2356 -
2370
of 3470
|
Number | Date | Patentee | Title | Type |
1,686,240 | Oct. 02, 1928 | D.C. Klausmeyer | Multiple-lever twenty-four-speed mechanism | tapping machines |
1,686,383 | Oct. 02, 1928 | D.C. Klausmeyer | Cam Controlled Twenty-Four Speed Mechanism | metalworking speed changing mechanisms |
1,687,609 | Oct. 16, 1928 | H.A. Gehres | Driving Mechanism for Engine Accesories | attachments |
1,688,534 | Oct. 23, 1928 | S. Einstein | Vaiable Speed Spindle Drive | milling machines |
1,690,568 | Nov. 06, 1928 | E.P. Bullard, Jr. | Turret Head for Machine Tools | turret lathes |
1,692,487 | Nov. 20, 1928 | E.L. Connell | Motor-driven threading tool | |
1,693,437 | Nov. 27, 1928 | G.O. Leopold, T.J. Fegley | Valve grinder | |
1,696,403 | Dec. 25, 1928 | D.C. Klausmeyer | Accessible Twin Lever Gear Shift for Drill Heads | metalworking machine mechanisms |
1,696,468 | Dec. 25, 1928 | J.F. Buhr | Multiple-spindle drill head | multiple spindle drill presses |
1,696,636 | Dec. 25, 1928 | H.L. Johnston | Grinding apparatus | |
1,698,827 | Jan. 15, 1929 | M. Skolnik | Mortising machine | mortising machines |
1,699,493 | Jan. 15, 1929 | A.E. Robinson | Feeding Means for Drilling Machines | radial drill presses |
1,699,792 | Jan. 22, 1929 | E.P. Larsh | Quick-acting switch | electric switches |
1,700,114 | Jan. 22, 1929 | C.H. Thompson | Surface Polishing Machine | polishing and buffing machinery |
1,700,966 | Feb. 05, 1929 | H. Baerbalck | Metal Working Machinery | metal shapers |