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
Assignee:
GEVAERT PHOTO PROD NV
Other Classes:
430/533, 430/535
International Classes:
G03C1/81