| All Patents in class 29/54 | 
| Patents 1 - 
					15
					of 15 
       | 
| Number | Date | Patentee | Title | Type | 
| 177,992 | May 30, 1876 | J.L. Agnew, R.T. Crane | Device for Turning Valve Stems &c. | lathe tool holders and tool posts | 
| 263,357 | Aug. 29, 1882 | C.F. Roper | Metal Screw Machine | screw machines | 
| 328,707 | Oct. 20, 1885 | E.F. Noyes | Compound Tool Holder | lathe tool holders and tool posts | 
| 414,906 | Nov. 12, 1889 | G. Heyne | Screw Machine | screw machines | 
| 568,484 | Sep. 29, 1896 | F.G. Kretschmer | Metal Screw Machine | screw machines | 
| 617,408 | Jan. 10, 1899 | F. Schultze | Metal Turning Machine | screw machines | 
| 982,034 | Jan. 17, 1911 | N.D. Chard | Lathe | metal lathes | 
| 1,194,864 | Aug. 15, 1916 | F. Müller | Machine for making twist drills | metal lathes | 
| 1,226,303 | May 15, 1917 | L.H. Brightman | Automatic cut-off machine | metal lathes | 
| 1,527,791 | Feb. 24, 1925 | R.E. Flanders | Lathe | multiple spindle lathes | 
| 2,146,583 | Feb. 07, 1939 | O. Kylin | Chuck and bar feed | metal lathes | 
| 2,337,530 | Dec. 21, 1943 | E.H. Sinclair, Jr., J.E. Loudon | Lathe Tooling Mechanism | tool changers and storage mechanisms | 
| 2,345,686 | Apr. 04, 1944 | W.E. Twamley, C.A. Rich | Screw and Similar Machine | screw machines | 
| 2,611,290 | Sep. 23, 1952 | E.P. Bullard | Method of Turning Work |  | 
| 2,659,961 | Nov. 24, 1953 | C.E. Dilts | Turning and Boring Machine | boring and turning machines |