EP 0118071 A2 19840912 - Photographic developer.
Title (en)
Photographic developer.
Title (de)
Fotografische Entwicklerzusammensetzung.
Title (fr)
Révélateur photographique.
Publication
Application
Priority
DE 3307507 A 19830303
Abstract (en)
[origin: US4615971A] Developer compositions which contain a hydrolyzed polymaleic acid anhydride having improved protection against precipitation of calcium compounds.
Abstract (de)
Entwicklerzusammensetzungen, welche ein hydrolisiertes Polymaleinsäureanhydrid enthalten, weisen einen verbesserten Kalkschutz auf.
IPC 1-7
IPC 8 full level
G03C 5/26 (2006.01); G03C 5/305 (2006.01); G03C 7/30 (2006.01)
CPC (source: EP US)
G03C 5/3053 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
EP 0118071 A2 19840912; EP 0118071 A3 19861015; EP 0118071 B1 19880615; DE 3307507 A1 19840906; DE 3472174 D1 19880721; JP S59165057 A 19840918; US 4615971 A 19861007
DOCDB simple family (application)
EP 84101714 A 19840220; DE 3307507 A 19830303; DE 3472174 T 19840220; JP 3545384 A 19840228; US 77480685 A 19850910