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Application filed by Emil Holtzmann FafiledCriticalEmil Holtzmann Fa
Publication of CH234798ApublicationCriticalpatent/CH234798A/de
B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
B41M5/00—Duplicating or marking methods; Sheet materials for use therein
B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
CH234798D1942-10-081943-03-15Verfahren zur Herstellung von Registrierpapier.
CH234798A
(de)