Acid-resistant copolymer and photographic element incorporating
Adhesion of hydrophilic layers on polyester film
Air cleaner electrostatic precipitator cell
Air purification device with a needle-shaped electrode...
Air purifier
Air treatment apparatus with attachable grill
Anodized aluminum photographic plates with silver bromide in por
Antihalation and filter dyes for photographic materials
Antistatic photographic sensitive materials
Article having a layer containing a copolymer of glycidyl methac