| All Patents in class 408/239R |
Patents 16 -
30
of 70
      |
| Number | Date | Patentee | Title | Type |
| 809,755 | Jan. 09, 1906 | W.F. Frenk, H.A. Smith | Tool | wrench combination tools |
| 828,859 | Aug. 14, 1906 | J. Merckens | Combined Wrench and Thread Retracing Tool | wrench combination tools |
| 858,985 | Jul. 02, 1907 | F.H. Hummel | Cutting Tool Holder | lathe tool holders and tool posts |
| 868,812 | Oct. 22, 1907 | L. Ruegg | Bit holder | |
| 893,942 | Jul. 21, 1908 | E.B. Sellew | Tool-holder | lathe tool holders and tool posts |
| 900,122 | Oct. 06, 1908 | W.L. Procunier | Yielding Bit and Tap Chuck | drill press chucks |
| 1,327,934 | Jan. 13, 1920 | F.T. Acock | Tool Holder | tool holders |
| 1,376,791 | May 03, 1921 | F.W. Franklin, W.W. Baker | Self Centering Tool Holder | metalworking machine tool holders |
| 1,442,234 | Jan. 16, 1923 | F.H. Petersen | Tool Holder | drilling and boring tool holders |
| 1,538,670 | May 19, 1925 | J.W. Stanley | Tool Holder | metalworking machine tool holders |
| 1,724,497 | Aug. 13, 1929 | G.M. Mehl | Threading die | pipe threading machines |
| 1,898,132 | Feb. 21, 1933 | W.B. du Mont, O.E. Koehler | Thread cutting die and holding clip therefor | tap wrenches and die stocks |
| 1,906,241 | May 02, 1933 | E.A. Arp | Method and apparatus for predetermining the size of rebored cylinders | automotive tools |
| 1,924,887 | Aug. 29, 1933 | O. Severson | Inserted Cutting Blade Lock | milling machine cutters |
| 2,153,054 | Apr. 04, 1939 | H.J. Smith | Die stock and tap wrench | taps and dies |
