| All Patents in class 408/39 | 
| Patents 1 - 
					8
					of 8 
       | 
| Number | Date | Patentee | Title | Type | 
| 321,023 | Jun. 30, 1885 | T.F. Hammer | Screw Tapping Machine | metal threading machines | 
| 594,825 | Nov. 30, 1897 | C.H. Bump | Handle-finishing machine | specialty woodworking machines | 
| 628,981 | Jul. 18, 1899 | G. Griffin | Automatic Button Lathe | button making machinery | 
| 689,035 | Dec. 17, 1901 | E.F. Brainard | Boring and tenoning machine | tenoning machines | 
| 919,823 | Apr. 27, 1909 | E. Childs | Machine for Drilling Stock | horizontal boring mills | 
| 966,816 | Aug. 09, 1910 | F. Fischer | Boring machine | drilling and boring | 
| 2,000,553 | May 07, 1935 | C.R. Alden | Machine tool | horizontal boring mills | 
| 2,548,188 | Apr. 10, 1951 | K.A. Riedel, F.D. Boehmer, J.B. Lukey, J.B. Armitage | Machine-Tool Transmission and Control Mechanism | milling machines |