| Patents for Van Norman Machine Tool Co. |
Patents 31 -
45
of 74
      |
| Number | Date | Patentee | Title | Type |
| 1,870,350 | Aug. 09, 1932 | F.D. Van Norman | Adjustable boring head | cylinder maintenance |
| 1,881,984 | Oct. 11, 1932 | C.E. Van Norman | Slide Mechanism for Precision Grinding Machines | grinding machines |
| 1,881,993 | Oct. 11, 1932 | E.A. Arp | Tool attachment device | automotive tools |
| 1,906,241 | May 02, 1933 | E.A. Arp | Method and apparatus for predetermining the size of rebored cylinders | automotive tools |
| 1,908,577 | May 09, 1933 | C.E. Van Norman | Oscillating Grinder | grinding machines |
| RE18,832 | May 16, 1933 | E.A. Arp | Tool attachment device | automotive tools |
| 1,918,147 | Jul. 11, 1933 | B.F. Stowell | Carriage positioning mechanism for grinding machines | grinders |
| 1,926,603 | Sep. 12, 1933 | B.F. Stowell | Automatic feed for grinding machines | grinders |
| 1,954,034 | Apr. 10, 1934 | E.A. Arp | Equalizing boring guide | automotive tools |
| 1,959,435 | May 22, 1934 | N.M. Marsilius | Milling machine | milling machines |
| 1,975,985 | Oct. 09, 1934 | B.F. Stowell | Method and apparatus for grinding valve seats | valve and seat maintenance |
| 2,036,656 | Apr. 07, 1936 | R.S. Pyne, B.F. Stowell | Valve seat cutter | valve and seat maintenance |
| 2,036,657 | Apr. 07, 1936 | B.F. Stowell | Valve Seat Puller | valve seat pullers |
| 2,036,658 | Apr. 07, 1936 | B.F. Stowell | Automatic grinding machine | grinders |
| 2,059,753 | Nov. 03, 1936 | J.Y. Scott, B.F. Stowell | Universal index head | indexers and dividers |
