| All Patents in class 470/182 |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 217,048 | Jul. 01, 1879 | H. Vogel, H.A. Eibach, F.G. Bielefeld | Chuck Attachment for Lathes | metal lathe chucks |
| 465,827 | Dec. 29, 1891 | H.C. Bradford | Tapping and Thread Cutting Machine | tapping machines |
| 632,812 | Sep. 12, 1899 | F.A. Errington | Stud Setting Machine | stud setting machines |
| 876,723 | Jan. 14, 1908 | W.A. Leonard | Tap Holder | tap and die holders |
| 909,437 | Jan. 12, 1909 | C.A. Mercier | Tapping Machine | tapping machines |
| 928,780 | Jul. 20, 1909 | R. Milne | Tapping attachment for drilling-machines | drilling and boring |
| 968,718 | Aug. 30, 1910 | V.J. Wahlstrom | Tapping or drilling attachment | tapping heads and chucks |
| 978,221 | Dec. 13, 1910 | S.C. Schauer, P.L. Brockardt | Gearing | drill presses |
| 1,053,984 | Feb. 25, 1913 | J.J. Grant | Gearing | tapping machines |
| 1,260,896 | Mar. 26, 1918 | J.F. Halstead | Tapping attachment for boring-machines | tapping heads and chucks |
| 1,519,316 | Dec. 16, 1924 | J.E. Larsh | Device for imparting rotary motion | tapping machines |
| 1,796,352 | Mar. 17, 1931 | S.C. Watson | Automatic Tapping Head | tapping heads and chucks |
| 1,988,967 | Jan. 22, 1935 | G.W. Emrick | Clutch device | tapping heads and chucks |
| 2,141,209 | Dec. 27, 1938 | G.W. Emrick | Tapping attachment | tapping heads and chucks |
| 2,376,164 | May 15, 1945 | J.M. Ingalls, C.E. Miller | Precision Threading Attachment | automatic lathes |
