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Home › Color-forming carboxamidonaphthalene dye precursor and carboximide dye in photographic material and process

Color-forming carboxamidonaphthalene dye precursor and carboximide dye in photographic material and process

US Patent 4536598 · Granted Aug 20, 1985

Estimated economic value: $7,020,000 ⓘ

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