| All Patents in class 408/709 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 349,963 | Sep. 28, 1886 | A. Willcox, J.D. Watson | Apparatus for Boring Cylinders | portable metal drilling machines |
| 531,773 | Jan. 01, 1895 | J. Buchanan | Locomotive or Engine Cylinder Boring Mechanism | portable turning tools |
| 1,028,600 | Jun. 04, 1912 | H.A. Pedrick | Cylinder Boring Machine | portable metal drilling machines |
| 1,516,815 | Nov. 25, 1924 | A.F. Froussard | Boring Machine | portable metal drilling machines |
| 1,520,382 | Dec. 23, 1924 | R.W. Workman | Boring Head | boring heads |
| 1,696,195 | Dec. 25, 1928 | A.F. Froussard | Cutter Head | boring heads |
| 1,868,440 | Jul. 19, 1932 | E.A. Arp | Boring machine and method | automotive tools |
| 1,906,241 | May 02, 1933 | E.A. Arp | Method and apparatus for predetermining the size of rebored cylinders | automotive tools |
| 2,004,228 | Jun. 11, 1935 | T. Thorsen, A. Storm | Boring machine | automotive tools |
| 2,078,598 | Apr. 27, 1937 | J.Y. Blazek, R.J. Kuschel | Clamping means | vehicle mechanic |
| 2,808,745 | Oct. 08, 1957 | W.S. Swanson, R.E. Blomquist | Chamfering machine | |
