发明名称 GUIDING SPIRALLY WOUND ZIPPERED FILM TO A CONSTANT INFEED POINT
摘要 Zippered film which is spirally wound on a nonoscillating rotary spool is guided to a constant point of infeed by running the zippered film from the spool to such infeed point through an oscillating guide device.
申请公布号 CA2031412(A1) 申请公布日期 1991.07.23
申请号 CA19902031412 申请日期 1990.12.04
申请人 ZIP-PAK INCORPORATED 发明人 BOECKMANN, HUGO
分类号 B65H23/02;(IPC1-7):B65H16/00 主分类号 B65H23/02
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