发明名称 |
Method and apparatus for coupon insertion |
摘要 |
Method and apparatus for positioning and securing a coupon within a transparent plastic bag in visible but tamper-proof manner. During manufacture of the bag a coupon is positioned against the inner surface of one side of the bag and the coupon is then overlaid with a cover strip which is heat sealed to the side of the bag. The bag is then completed and the coupon is held within the bag by the cover strip.
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申请公布号 |
US4268344(A) |
申请公布日期 |
1981.05.19 |
申请号 |
US19790068064 |
申请日期 |
1979.08.20 |
申请人 |
GLOPAK INDUSTRIES LIMITED |
发明人 |
JONES, ELWYN D. |
分类号 |
B31B41/00;B65B61/20;B65C9/18;G09F3/18;(IPC1-7):B32B31/00;B32B3/00;B32B31/04;B65C9/40 |
主分类号 |
B31B41/00 |
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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