Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1984-05-04
1985-12-10
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51101LG, 51284E, B24B 4900
Patent
active
045570760
ABSTRACT:
The machine grinds the rims of spectacle lenses in accordance with data from an electronic data memory containing the circumferential configuration of the spectacle lens. The grinding machine is controlled by a computer.
REFERENCES:
patent: 3011291 (1961-12-01), Walton
patent: 3899851 (1975-08-01), Asselin
patent: 4027245 (1977-05-01), Bourrat
patent: 4179851 (1979-12-01), Neisler
patent: 4203259 (1980-05-01), Haddock
patent: 4214309 (1980-07-01), Korde
patent: 4217736 (1980-08-01), Akaba
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