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摘要
申请公布号
US2868383(A)
申请公布日期
1959.01.13
申请号
US19570633491
申请日期
1957.01.10
申请人
C. A. V. LIMITED
发明人
NICOLLS WILFRID EDWARD WALTER
分类号
B01D29/07
主分类号
B01D29/07
代理机构
代理人
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