| All Patents in class 74 |
Patents 2341 -
2355
of 3500
      |
| Number | Date | Patentee | Title | Type |
| 1,628,061 | May 10, 1927 | C.M. Petersen | Multiple-Spindle Metal-Turning Machine | |
| 1,632,375 | Jun. 14, 1927 | R.T. Hazelton | Shaper | metal shapers |
| 1,632,671 | Jun. 14, 1927 | R.A. Norling | Reversing mechanism for electric drills | handheld power drills |
| 1,634,149 | Jun. 28, 1927 | D.C. Klausmeyer | Brake Mechanism for Drill Spindles | metalworking machine mechanisms |
| 1,638,027 | Aug. 09, 1927 | W.B. Kochner, J.F. Galvin | Fan-oscillating mechanism | |
| 1,638,654 | Aug. 09, 1927 | J.C. Carlton | Radial Drill | radial drill presses |
| 1,640,570 | Aug. 30, 1927 | G.E. Hieber | Power hammer | |
| 1,642,863 | Sep. 20, 1927 | W.E. Whipp | Headstock for Lathes | engine lathes |
| 1,646,441 | Oct. 25, 1927 | F.R. Belluche | Mechanical movement | printer |
| 1,648,888 | Nov. 15, 1927 | F.E. Aurand | Portable surface-cleaning tool | |
| 1,653,576 | Dec. 20, 1927 | D.C. Klausmeyer | Lubricating System for Drill Heads | metalworking machine lubrication |
| 1,657,434 | Jan. 24, 1928 | R.T. Hazelton | Circular Feeding Attachment | metal shaper accessories |
| 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 |
