72374638
Oct 29, 1970
Feb 29, 1972
CHEMICAL COMPOSITIONS FOR USE IN PHOTOGRAPHIC AND ELECTROPHOTOGRAPHIC PROCESSES-NAMELY, X-RAY FILM DEVELOPERS, FIXERS AND REPLENISHERS; ETCHING SOLUTIONS; ACTIVATOR FLUIDS AND DEVELOPERS FOR PHOTOCOPY PAPER; PHOTOCOPY TONERS, INTENSIFIERS, DISPERSANTS, DILUENTS, AND REPLENISHERS
Metal Goods