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Priority claimed from US187077Aexternal-prioritypatent/US2214566A/en
Application filed by Bitumen Emulsions LtdfiledCriticalBitumen Emulsions Ltd
Publication of BE432235ApublicationCriticalpatent/BE432235A/fr
D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
D21H19/00—Coated paper; Coating material
D21H19/36—Coatings with pigments
BE432235A1938-01-261939-01-18Perfectionnements apportés à la préparation de solutions et de dispersions
BE432235A
(fr)