| All Patents in class 409/65 |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
| | 1,058,711 | Apr. 15, 1913 | E.E. Beck | Cut-back-die-thread machine |
| | 1,200,047 | Oct. 03, 1916 | A.M. Thompson | Work-Holder for Screw-Threading Machines |
 | 1,276,445 | Aug. 20, 1918 | C.H. Taylor | Thread-cutter |
 | RE15,625 | Jun. 12, 1923 | C.H. Taylor | Thread-cutter |
| | 1,750,956 | Mar. 18, 1930 | R.E. Flanders | Machine for Grinding Chasers |
| | 2,148,805 | Feb. 28, 1939 | S.A. Cogsdill | Method of Making Oil Hole Drills |
| | 3,774,501 | Nov. 27, 1973 | H.H. Ranney, R.W. Brown | Thread Milling Attachment |
