| 摘要 |
879,637. Packages. HERMORION Ltd. Dec. 24, 1959 [Jan. 8, 1959], No. 43932/59. Class 94(1). [Also in Group XXVIII] The longitudinal seam 5 of a packaging tube is of the same thickness as the wall of the tube. This may be achieved by butt, scarf or stepped joints or by a stepped joint in which one edge 3 is doubled over. The tube is normally of paper with a thermoplastic lining 18, the latter preferably being continuous across the finished seam. |
