Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1977-03-09
1979-01-30
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
15 49C, B24B 2302
Patent
active
041364910
ABSTRACT:
A floor sanding machine is provided with a pair of sanding discs, each of which is driven by an individual variable speed electric motor. Individual controls on the handle of the floor sanding machine control the speed of each of the individual motors so that the sanding machine can be guided in a desired direction by changing the speed of one or the other or both of the electric motors.
REFERENCES:
patent: 1961384 (1934-06-01), Oelmann
patent: 2978719 (1961-04-01), Arones
patent: 3398490 (1968-08-01), Redifer
patent: 3496681 (1970-02-01), Oswald
Harpman Webster B.
Parker Roscoe V.
Whitehead Harold D.
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