发明名称 Method of producing vacuum sealed packs - consists of fixing fastening strip to the bag's top flap, bending it twice to form loop
摘要 The method of producing vacuum-sealed packs consists of fixing a fastening-strip (14) to the top-flap (11) of the bag. At least one end of the strip is bent twice round to form a loop (18). The points of the loop end near the second bend rest on the one side of the strip. Part of the strip on the other side is fixed to the top flap. USE/ADVANTAGE - Products are prevented from losing their aroma or from oxidation by means of the vacuum-sealed pack.
申请公布号 CH678615(A5) 申请公布日期 1991.10.15
申请号 CH19900001885 申请日期 1990.06.05
申请人 SIG SCHWEIZERISCHE INDUSTRIE-GESELLSCHAFT 发明人 GRAF, HEINRICH
分类号 B65D33/30 主分类号 B65D33/30
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