| All Patents in class 51/298 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
 | 13,531 | Sep. 04, 1855 | T.B. Smith, E. Strange | Machine for sawing hoops |
| | 2,308,854 | Jan. 19, 1943 | C.E. Barnes | Abrasive Article |
| | 2,943,926 | Jul. 05, 1960 | G.J. Goepfert | Abrasive Wheel Composition |
| | 3,030,198 | Apr. 17, 1962 | H.S. Kibbey | Abrasive Article |
| | 3,113,006 | Dec. 03, 1963 | H.S. Kibbey | Filler for Grinding Wheels |
| | 3,116,986 | Jan. 07, 1964 | E.C. Johns, G.J. Geopfert | Method of Making Cold-Molded Abrasive Wheel |
| | 3,183,633 | May 18, 1965 | J.W. Decker | Polyurethane Gear Finishing Tool |
| | 3,212,869 | Oct. 19, 1965 | J.W. Decker | Tool for Finishing Toothed Elements |
| | 3,269,813 | Aug. 30, 1966 | H.S. Kibbey | Abrasive Article Containing Zirconium Tetraflouride Filler |
| | 3,389,117 | Jun. 18, 1968 | D.I. Dally, V.G. Soukup, S.E. Kozdemba | Dressable Heat Conductive Backing for Abrasive Wheels |
