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摘要
申请公布号
US2183368(A)
申请公布日期
1939.12.12
申请号
US19370123744
申请日期
1937.02.03
申请人
UNITED STATES HOFFMAN MACHINERY CORPORATION
发明人
MEYER HENRY C. A.
分类号
B01D29/39
主分类号
B01D29/39
代理机构
代理人
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