All Patents in class 451/393 |
Patents 31 -
45
of 47
|
Number | Date | Patentee | Title | Type |
1,355,167 | Oct. 12, 1920 | C.A. Rich | Milling Machine | milling machines |
1,395,391 | Nov. 01, 1921 | E.R. Conners | Device for Truing and Dressing Grinding Wheels | grinder dressers |
1,477,480 | Dec. 11, 1923 | W.F. Groene | Combined power and hand operated feed mechanism | metal lathes |
1,573,818 | Feb. 23, 1926 | S. Einstein, H.R. Isler | Shock Absorbing Motion Accelerator | metalworking machine mechanisms |
1,664,024 | Mar. 27, 1928 | J. de Koning | Grinding machine | |
1,959,329 | May 22, 1934 | A.F. Bennett | Milling Machine | milling machines |
1,965,221 | Jul. 03, 1934 | M. De Haas | Backlash Eliminator | metalworking machine mechanisms |
1,966,888 | Jul. 17, 1934 | L.A. Dumser | Machine tool | |
1,980,872 | Nov. 13, 1934 | A.F. Moul | Apparatus for grinding | sharpening machines |
2,010,366 | Aug. 06, 1935 | B.A. Kearns | Grinding Machine | grinding machines |
2,309,668 | Feb. 02, 1943 | J.E. Poorman | Grinding Machine | surface grinders |
2,343,577 | Mar. 07, 1944 | J.E. Poorman | Grinding Machine | surface grinders |
2,348,281 | May 09, 1944 | S.G. Brady | Machine for Grinding Racks | gear grinding machines |
2,386,283 | Oct. 09, 1945 | E.A. Reibig, C.A. Wiken | Machine tool | surface grinders |
2,400,767 | May 21, 1946 | C. Melidoni, H. Gass | Grinding attachment | cylindrical grinders |