Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1976-06-08
1977-12-06
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
B24B 2500
Patent
active
040609391
ABSTRACT:
A device of simultaneous surface-treatment of two parallel plain surfaces of a worked article consisting of two immobile polishing blocks one serving likewise as support for the piece to be treated which is exposed to a combination of longitudinal and transverse movements of translation being independently adjustable with regard to the velocity and the course of the movement.
REFERENCES:
patent: 1257047 (1918-02-01), Suverkrop
patent: 1485321 (1924-02-01), Wilkinson
patent: 1491101 (1924-04-01), Hoke
patent: 2085005 (1937-06-01), Cole
patent: 2168596 (1939-08-01), Hall
patent: 3127707 (1964-04-01), Burt
Dubied Gilbert
Kuenzi Ernst
Laboratoire Suisse de Recherches Horlogeres
Whitehead Harold D.
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