Automatic liquid control and scanning device for duplicating machines
United States Patent 3234871
US Patent References:
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- - 2951416
Means for detecting metal particles in nonmetallic material
- - 1640524
Magnetic detector
- - 1906820
Method and apparatus for controlling water supply in planographic printing press
- - 2821132
Electrographic inking powder moisture control
- - 2919672
Device for measuring film thickness
- - 2951416
Inventors:
Ostwald, Robert E.
Publication Date:
02/15/1966
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Assignee:
Ostwald, Robert E.
Primary Class:
Other Classes:
101/350.100, 356/445, 101/148
International Classes:
B41L39/00
US Patent References: