| All Patents in class 74 |
Patents 2356 -
2370
of 3486
      |
| Number | Date | Patentee | Title | Type |
| 1,669,319 | May 08, 1928 | R.M. Bennethum | Windmill | wind power apparatus |
| 1,670,794 | May 22, 1928 | J.B. Armitage | Power Transmitting Mechanism | metalworking machine mechanisms |
| 1,671,396 | May 29, 1928 | P.R. Thompson, W.I. Ballentine | Rein Guide | tractor steering apparatus |
| 1,672,128 | Jun. 05, 1928 | D.C. Klausmeyer | Upright Drill Depth Gauge | metalworking machine mechanisms |
| 1,678,384 | Jul. 24, 1928 | B.P. Graves | Variable Speed Driving Mechanism | metalworking variable speed mechanisms |
| 1,679,529 | Aug. 07, 1928 | A.M. Johnson | Automatic machine tool | tapping machines |
| 1,679,541 | Aug. 07, 1928 | F.W. Parker | Shaper | metal shapers |
| 1,679,825 | Aug. 07, 1928 | R.J. Holmgreen, J.H. Holmgreen | Rotary Well Drilling Machine | well drilling machines |
| 1,679,884 | Aug. 07, 1928 | H.T. Thomas | Attachment for drills | handheld power tool accessories |
| 1,682,788 | Sep. 04, 1928 | J.T. Janette | Motor and pump for oil heating system | furnaces |
| 1,683,448 | Sep. 04, 1928 | C.M. Conradson | Selective Geared Head Lathe | metalworking machine mechanisms |
| 1,684,344 | Sep. 11, 1928 | J.C. Carlton | Trasmission for Radial Drill Arms, Elevating Mechanism and Drill Spindles | radial drill presses |
| 1,684,665 | Sep. 18, 1928 | W.W. Edwards | Radial drill | radial drill presses |
| 1,685,310 | Sep. 25, 1928 | G.W. Drake, E.P. Burrell | Contolling Lever for Machine Tools | metalworking machine mechanisms |
| 1,685,638 | Sep. 25, 1928 | D.C. Klausmeyer | Condensed Clutch for Reversing Mechanisms | metalworking machine mechanisms |
