发明名称 |
Variable-width draw tape for thermoplastic bags |
摘要 |
A draw tape for a bag where the draw tape is made wider at the center area where it is gripped by hand for forcing any elongation to occur at some other point thereby preventing "roping" at the hand area.
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申请公布号 |
US4842420(A) |
申请公布日期 |
1989.06.27 |
申请号 |
US19870134270 |
申请日期 |
1987.12.14 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
DIBIASI, DANIEL J.;HERRINGTON, FOX J. |
分类号 |
B65D33/28 |
主分类号 |
B65D33/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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