Bicyclic reductone developing agents
Bimetallic lithographic printing plates
Bis-azo pyrazolone type dye developer and light-sensitive materi
Black-and-white photographic elements and processes
Bleach-fix regeneration monitoring method
Bleached holographic material and process for the fabrication th
Blended internal latent image emulsions, elements including such
Boiler flue gas conditioning system using dilute sulfuric acid i
Bottom feed--updraft gasification system