| All Patents in class 407/39 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
| | 1,938,773 | Dec. 12, 1933 | L.F. Nenninger, H. Ernst | Rotary Cutter |
| | 1,962,725 | Jun. 12, 1934 | O. Severson | Cross Locked Inserted Blade Cutter |
| | 2,037,642 | Apr. 14, 1936 | H.F. Scribner | Blade Lock for Metal Cutting Tools |
| | 2,546,306 | Mar. 27, 1951 | F.C. Johnson | Cutting Tool Holder |
| | 3,121,939 | Feb. 25, 1964 | T.V. Williams | Cutting Tool With Indexable Bit |
| | 3,270,396 | Sep. 06, 1966 | T.V. Williams | Bit Holder |
| | 3,501,822 | Mar. 24, 1970 | T.V. Williams | Tool with Bit Holder |
| | 4,231,691 | Nov. 04, 1980 | H. Woerz, D. Pape | Dual Cutter Boring Head |
