Inventor

FROEHLICH ALFRED

2 patents

Patents

2 patents

US4118232AOct 3, 1978

Photographic material containing sulphonic acid group containing disazo dyestuffs

CIBA GEIGY AG42 citations90

US4051123ASep 27, 1977

Sulfonic-acid-group containing disazo dyestuffs

CIBA GEIGY AG29 citations80