Gas separation: apparatus – Electric field separation apparatus – Including gas flow distribution means
Patent
1975-02-21
1977-06-07
Kelley, Mary F.
Gas separation: apparatus
Electric field separation apparatus
Including gas flow distribution means
96107, G03C 530, G03C 128
Patent
active
040281108
ABSTRACT:
A method of developing an exposed lith-type silver halide emulsion is described wherein development takes place in the presence of a sulphonium compound corresponding to the formula: ##STR1## wherein: EACH OF X.sub.1 and X.sub.2 represents an alkyl group at least one of which carries a hydroxy, carboxy, sulpho or cyano group,
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patent: 3518085 (1970-06-01), Milton et al.
patent: 3847618 (1974-11-01), Hofman et al.
Berendsen Jules Robert
Philippaerts Herman Adelbert
Pollet Robert Joseph
Sels Francis Jeanne
Willems Jozef Frans
Agfa-Gevaert N.V.
Breiner A. W.
Kelley Mary F.
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