Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
Inventor
active
Chromogenic black and white silver halide print material
Photographic element containing a coupler capable of releasing a
Photographic element containing a coupler capable of releasing a
Photographic element containing a high dye-yield coupler with me
Photographic element containing high dye-yield couplers having i
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