Cleaning and liquid contact with solids – Processes – Including regeneration – purification – recovery or separation...
Patent
1989-02-28
1991-02-26
McFarlane, Anthony
Cleaning and liquid contact with solids
Processes
Including regeneration, purification, recovery or separation...
134 18, 134 26, 354324, 354331, 430398, B08B 704
Patent
active
049959131
ABSTRACT:
A method is disclosed for controlling the flow rate of wash water in a silver halide film processor.
REFERENCES:
patent: 2650888 (1953-09-01), Pottberg
patent: 3432271 (1969-03-01), Wasilewski
patent: 4641941 (1987-02-01), Yoshimi
patent: 4719173 (1988-01-01), Hahn
patent: 4810306 (1989-07-01), Noren
E. I. Du Pont de Nemours and Company
McFarlane Anthony
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