| Patents for Van Norman Machine Tool Co. |
Patents 16 -
30
of 74
      |
| Number | Date | Patentee | Title | Type |
| 1,445,875 | Feb. 20, 1923 | R.W. Ellingham, C.E. Van Norman | Grinding machine | vehicle mechanic |
| 1,515,568 | Nov. 11, 1924 | R.W. Ellingham, G.W. Fleming | Grinding machine | cylindrical grinders |
| 1,544,287 | Jun. 30, 1925 | C.E. Van Norman | Grinding machine | cylindrical grinders |
| 1,646,801 | Oct. 25, 1927 | G.W. Fleming, F.D. Van Norman | Triple grinding machine | grinders |
| 1,716,331 | Jun. 04, 1929 | B.F. Stowell | Method of making collets | collets and collet holders |
| 1,722,691 | Jul. 30, 1929 | C.E. Van Norman | Grinding machine | grinders |
| 1,735,804 | Nov. 12, 1929 | B.F. Stowell | Collet | collets and collet holders |
| 1,749,514 | Mar. 04, 1930 | J.Y. Scott | Valve-reseating apparatus | valve and seat maintenance |
| 1,761,059 | Jun. 03, 1930 | C.E. Van Norman, B.F. Stowell | Polishing machine | handheld power sanders |
| 1,763,201 | Jun. 10, 1930 | F.D. Van Norman | Magnetic throw-off for grinding machines | grinders |
| 1,788,475 | Jan. 13, 1931 | C.E. Van Norman | Feed mechanism for grinding machines | grinders |
| 1,812,455 | Jun. 30, 1931 | B.F. Stowell | Diaphragm chuck | grinders |
| 1,830,179 | Nov. 03, 1931 | B.F. Stowell | Cutting Tool | milling machine cutters |
| 1,858,693 | May 17, 1932 | C.E. Van Norman | Chuck | chucks |
| 1,868,440 | Jul. 19, 1932 | E.A. Arp | Boring machine and method | automotive tools |
