Inventor
KRAMP EKKEHARD
3 patents
Patents
3 patentsUS4254215AMar 3, 1981
Process for the prevention of darkening and the formation of a sediment in photographic developer solutions
CIBA GEIGY AG21 citations79
US3961957AJun 8, 1976
Dye bleach preparation for the photographic silver dye bleach process
CIBA GEIGY AG9 citations68
US4898810AFeb 6, 1990
Layers for photographic materials
CIBA GEIGY AG12 citations66