All Patents in class 451/247 |
Patents 16 -
30
of 42
|
Number | Date | Patentee | Title | Type |
1,732,119 | Oct. 15, 1929 | A.L. Brown | Automatic combined turning lathe and sander for woodwork | pattern lathes |
1,773,937 | Aug. 26, 1930 | G.W. Binns | Grinding Machinery | grinding machines |
1,814,351 | Jul. 14, 1931 | F.J. Theler | Grinding Machinery | grinding machines |
1,864,589 | Jun. 28, 1932 | H. Ernst | Grinding Machinery | grinding machines |
1,891,657 | Dec. 20, 1932 | F.J. Theler | Grinding Machine | grinding machines |
1,900,112 | Mar. 07, 1933 | J.H. Hoern | Grinding machine | cylindrical grinders |
1,904,304 | Apr. 18, 1933 | R.E. Flanders | Method and Machine for Grinding Chasers | tool grinders |
1,921,715 | Aug. 08, 1933 | W.M. Whitney, A. White | Wood shaper | wood shapers |
1,952,130 | Mar. 27, 1934 | F.S. Haas, R.E. Harrison | Brake Shoe Grinder | grinding machines |
1,952,182 | Mar. 27, 1934 | B.R. Purvin | Grinding Machine | grinding machines |
1,991,712 | Feb. 19, 1935 | F.J. Theler | Grinding Machine | grinding machines |
1,993,831 | Mar. 12, 1935 | A.H. Dall | Apparatus for Producing Surfaces of Revolution Eccentric to One Another | grinding machines |
2,035,737 | Mar. 31, 1936 | G.W. Binns, L.E. Mehlhope | Grinding Machine | grinding machines |
2,059,895 | Nov. 03, 1936 | C.H. Norton, A.G. Belden | Grinding machine | cylindrical grinders |
2,105,872 | Jan. 18, 1938 | A.L. Warner | Grinding machine | sharpeners |