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摘要
申请公布号
US2376739(A)
申请公布日期
1945.05.22
申请号
US19420453565
申请日期
1942.08.04
申请人
SELAS CORPORATION OF AMERICA
发明人
JR. JOHN M. WALKER,
分类号
B01D29/33
主分类号
B01D29/33
代理机构
代理人
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