发明名称 |
METHOD OF MANUFACTURING BAGS |
摘要 |
The present invention provides a method of manufacturing bags from a strip-like bag material of a thermoplastic synthetic resin and is characterized by having the heat-sealing of the bag material and the severing of the heat-sealed portions performed in two separate steps to thereby secure the smooth transfer of the bag material so that the bag manufacturing efficiency may be enhanced.
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申请公布号 |
US3675542(A) |
申请公布日期 |
1972.07.11 |
申请号 |
USD3675542 |
申请日期 |
1970.07.01 |
申请人 |
YASUHIRO TORIGOE;TAIYO SHOKAI CO. LTD. |
发明人 |
YASUHIRO TORIGOE |
分类号 |
B31B23/00;(IPC1-7):B31B49/04 |
主分类号 |
B31B23/00 |
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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