Title:
DISC GRINDING APPARATUS
United States Patent 3523649


Inventors:
Laakso, Oliver A.
Application Number:
US3523649DA
Publication Date:
08/11/1970
Filing Date:
10/25/1967
Assignee:
KAMYR AB
Primary Class:
Other Classes:
241/89.4, 241/163, 241/251, 241/297, 425/381.2
International Classes:
D21D1/30; (IPC1-7): B02C7/12
View Patent Images:
US Patent References:
2738931Comminuting apparatus and method1956-03-20
2156321Fiber pulp refiner1939-05-02
0525582N/A1894-09-04
0009313N/A1852-10-12