71463076
Aug 28, 1943
Aug 1, 1944
ENVELOPE-LIKE SEALED CONTAINERS TO BE USED IN PACKAGES AND MADE PRINCIPALLY OF TWO OPPOSED LAYERS OF SHEET MATERIAL THERMOPLASTICALLY SEALED TOGETHER AT THEIR MARGINS TO FORM A COMPARTMENT FOR THE SUBSTANCE TO BE PACKAGED, WITH OR WITHOUT FOLDED PAPER COVERS
Paints