(Dialkylamino)alkyloxosulfonium alkanesulfonylmethylide silver h

1,3-Disulfonylcycloalkanes as silver halide solvents

1,4-Bis(2-isopropyl-6-methylanilino)anthraquinone and a polyethy

2,5-Bis(secondary amino) oxa- and thiadiazole photographic devel

2,5-Dicarbonylaminophenol dye-forming couplers

2-Equivalent acylacetamide yellow forming couplers with 2,6-diox

4,7-Dihydroxybenzimidazole hydrobromide as antifogger

4-Hydroxypyrazole developing agents

4-Hydroxypyrazole developing agents

Acid-resistant copolymer and photographic element incorporating

Activation of silver halide photographic developers

Active field polarized media air cleaner

Acylacetanilide coupler with heterocyclic diacyl amino coupling-

Additive for inhibitor removing bath

Adhesion of hydrophilic layers on polyester film

Adjustable air filter

Adjustable air filtering device

Adjustable eddy electrostatic precipitator

Aerodynamic-electrostatic particulate collection system

Aerodynamic-electrostatic particulate collection system