Non-curling multilayer material
United States Patent 3300313

Inventors:
Nicolas, Vrancken Marcel
Alois, Claeys Daniel
Paesschen, August Jean Van
Bernard, Lambrechts Jan
Publication Date:
01/24/1967
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Assignee:
GEVAERT PHOTO PROD NV
Primary Class:
Other Classes:
430/533, 430/535
International Classes:
G03C1/81