73120112
Mar 23, 1977
Sep 11, 1979
ENVELOPES PRODUCED IN A CONTINUOUS SEVERABLE STRIP, EACH ENVELOPE BEING OF PAPER MATERIAL AND ENCLOSING ONE OR MORE SHEETS OF INFORMATIONAL INSERT MATERIAL, THE SEALED ENVELOPE AND THE INSERT MATERIAL BEING ADAPTED TO BE PRINTED AFTER ASSEMBLY AND SEALING THEREOF
Paper Goods and Printed Matter