LU66569A1LU66569ALU66569DALU66569A1LU 66569 A1LU66569 A1LU 66569A1LU 66569 ALU66569 ALU 66569ALU 66569D ALU66569D ALU 66569DALU 66569 A1LU66569 A1LU 66569A1
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LU
Luxembourg
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LU66569A
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Publication of LU66569A1publicationCriticalpatent/LU66569A1/xx
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