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发明名称
Heat sealing element for thermo-plastic film
摘要
申请公布号
US2606987(A)
申请公布日期
1952.08.12
申请号
US19490098961
申请日期
1949.06.14
申请人
发明人
WINSTEAD THOMAS W.
分类号
B29C65/00;B29C65/18;B29C65/22
主分类号
B29C65/00
代理机构
代理人
主权项
地址
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