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发明名称
PLASTIC EXTRUSION PROCESS IN CHILL ROLL CASTING OF FILM FOR IMPROVED FLATNESS
摘要
申请公布号
US3597515(A)
申请公布日期
1971.08.03
申请号
USD3597515
申请日期
1969.01.22
申请人
DOW CHEMICAL CO.:THE
发明人
ALMAR T. WIDIGER
分类号
B29C47/88;(IPC1-7):B29D7/02;B29D7/08
主分类号
B29C47/88
代理机构
代理人
主权项
地址
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