Reinforced plastic bag

B - Operations – Transporting – 31 – B

Patent

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93/22

B31B 49/00 (2006.01) B31B 39/00 (2006.01) B29C 65/40 (2006.01)

Patent

CA 1249158

ABSTRACT OF THE DISCLOSURE The invention provides a method of forming plastic tubing and particularly double-walled plastic bags wherein the seal area is strengthened by utilizing a plurality of layers of material in the seal area.

446144

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