| All Patents in class 279/156 |
Patents 1 -
15
of 26
      |
| Number | Date | Patentee | Title | Type |
| 221,746 | Nov. 18, 1879 | J.N. Skinner | Lathe Chuck | metal lathe chucks |
| 339,595 | Apr. 06, 1886 | C.E. Stone | Drill Chuck | drill chucks |
| 449,246 | Mar. 31, 1891 | S.P. Graham | Boring-tool holder | drill press chucks |
| 1,188,667 | Jun. 27, 1916 | L.M. Lymburner | Lathe attachment | metal lathe accessories and attachments |
| 1,353,043 | Sep. 14, 1920 | J.E. Hultberg | Tool handle | |
| 1,812,455 | Jun. 30, 1931 | B.F. Stowell | Diaphragm chuck | grinders |
| 1,858,693 | May 17, 1932 | C.E. Van Norman | Chuck | chucks |
| 1,863,108 | Jun. 14, 1932 | J.C. Glenzer | Tool Holder | drilling and boring tool holders |
| 1,883,713 | Oct. 18, 1932 | C.B. Gray | Tool Holder | metalworking machine tool holders |
| 2,120,198 | Jun. 07, 1938 | R.G. Anderson, J.Y. Blazek | Valve grinder | vehicle mechanic |
| 2,122,360 | Jun. 28, 1938 | G.A. Highberg, H.E. Sloan | Chuck | metal lathe chucks |
| 2,182,411 | Dec. 05, 1939 | J.A. Scully, B.F. Rosenberg | Tool Holder | drilling and boring tool holders |
| 2,289,583 | Jul. 14, 1942 | F.J. Malone | Tool Holder | metalworking machine tool holders |
| 2,310,259 | Feb. 09, 1943 | H.W. Ruppel | Stock feed for automatic screw machines | screw machines |
| 2,351,232 | Jun. 13, 1944 | S. Schnabolk | Stud setting and removal tool | stud drivers |
