发明名称 |
Square ended bag |
摘要 |
Open mouth square ended bags are formed from a tube-like band and in a chain with the back wall and top end of each bag partially sealed together from each side wall to provide an open mouth therebetween. Each bag in turn may be filled through the mouth located between the back wall and top end, the bag expanding forwardly from the back wall by expanding gussets in the top and bottom ends.
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申请公布号 |
US4453370(A) |
申请公布日期 |
1984.06.12 |
申请号 |
US19810301762 |
申请日期 |
1981.09.14 |
申请人 |
BASIC PACKAGING SYSTEMS, INC. |
发明人 |
TITCHENAL, OLIVER R. |
分类号 |
B31B19/36;B31B37/00;B65D33/00;(IPC1-7):B65B43/08;B65B43/04;B31B49/04;B31B1/22 |
主分类号 |
B31B19/36 |
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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