| All Patents in class 51/295 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 163,880 | Jun. 01, 1875 | S.G. Morrison | Improvement in modes of applying emery to metal surfaces | grinding wheels |
| 227,402 | May 11, 1880 | J.F. Wood | Treatment of emery-wheels | grinding wheels |
| 664,319 | Dec. 18, 1900 | M.B. Hill | Oil-stone | |
| 1,854,071 | Apr. 12, 1932 | E.C. Schacht | Method of manufacturing abrasives | |
| 2,027,307 | Jan. 07, 1936 | E.C. Schacht | Method of coating and apparatus therefor and product | |
| 2,082,182 | Jun. 01, 1937 | E.C. Schacht | Manufacture of abrasive articles | |
| RE20,660 | Feb. 22, 1938 | E.C. Schacht | Method of coating and apparatus therefor and product | |
| 2,245,301 | Jun. 10, 1941 | E.C. Schacht | Manufacture of abrasive articles | |
| 2,545,676 | Mar. 20, 1951 | L. Small | Diamond impregnated dressing tool | grinder dressers |
| 3,212,869 | Oct. 19, 1965 | J.W. Decker | Tool for Finishing Toothed Elements | gear cutting tools |
| 3,918,218 | Nov. 11, 1975 | M.H. Zoiss | Filamentary cutting tool containing solid microparticles and method of making it | |
