| All Patents in class 470/103 |
Patents 16 -
30
of 35
      |
| Number | Date | Patentee | Title | Type |
| 1,358,074 | Nov. 09, 1920 | W.H. Gates | Die Head | tap and die holders |
| 1,506,331 | Aug. 26, 1924 | I. Benkö | Tool Holder | drilling and boring tool holders |
| 1,538,670 | May 19, 1925 | J.W. Stanley | Tool Holder | metalworking machine tool holders |
| 1,564,342 | Dec. 08, 1925 | O.P. Wodack, J.J. Bebhardt | Portable power-driven tool | handheld power drivers |
| 1,608,113 | Nov. 23, 1926 | G.E. Nace, A.G. Lundin | Chuck | |
| 1,732,558 | Oct. 22, 1929 | A.M. Johnson | Automatic facing tool for drilling machines and the like | nut or bolt making machines |
| 1,804,459 | May 12, 1931 | R.R. Finn, E.T. Bysshe | Screw-Cutting Die | tapping heads and chucks |
| 1,863,108 | Jun. 14, 1932 | J.C. Glenzer | Tool Holder | drilling and boring tool holders |
| 1,974,345 | Sep. 18, 1934 | A.J. Scholtes | Double Action Releasing Tool Holder | tapping heads and chucks |
| 2,034,118 | Mar. 17, 1936 | M.J. Schlitters | Tool Holder | lathe tool holders and tool posts |
| 2,147,203 | Feb. 14, 1939 | O. Kylin | Tap holder | metal lathe accessories and attachments |
| 2,253,493 | Aug. 26, 1941 | H.F. Bakewell | Machine tool | tapping machines |
| 2,281,416 | Apr. 28, 1942 | G.H. Cote | Tool Holder | metalworking machine tool holders |
| 2,333,868 | Nov. 09, 1943 | O. Kylin | Releasing Tap Holder | |
| 2,375,662 | May 08, 1945 | F. Mummert, H. Keeling | Automatic Tapping Attachment | tapping heads and chucks |
