Multi-ply paper bag with plastic liner of smaller dimension
作者： Edward S Naylor
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lens.org 参考文章(4)
Jared W Clark, Composite packaging unit ,(1958)
Rausing Anders Ruben, Double-walled end-sealed container ,(1961)
Friedman Arthur Murray, Double-wall flexible package ,(1964)
Robert J Herschler, Plural-ply paper bag for arctic and tropical climates ,(1955)