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发明名称
Apparatus for heat-sealing thermoplastic material
摘要
申请公布号
US2768272(A)
申请公布日期
1956.10.23
申请号
US19520327720
申请日期
1952.12.24
申请人
E. I. DU PONT DE NEMOURS AND COMPANY
发明人
LESHER HERBERT A.
分类号
B29C65/18
主分类号
B29C65/18
代理机构
代理人
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