B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
93/2, 93/62
B31B 49/04 (2006.01) B31B 19/74 (2006.01) B31B 23/00 (2006.01) B65D 33/00 (2006.01)
Patent
CA 1077758
A B S T R A C T Plastics bags are formed by welding a continuous tube or a pair of continuous films or a continuous folded film, and the finished bags are marked by attachment of pre-printed panels of plastics material using adhesion by corona-discharge irradiation of both the bag material and the printed panel material.
279710
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