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发明名称
ULTRA-THIN LIQUID MEMBRANE CONSTRUCTION
摘要
申请公布号
US3625734(A)
申请公布日期
1971.12.07
申请号
USD3625734
申请日期
1969.10.16
申请人
UNITED STATES OF AMERICA
发明人
WILLIAM J. WARD
分类号
B01D61/38;(IPC1-7):B44D1/14
主分类号
B01D61/38
代理机构
代理人
主权项
地址
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