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发明名称
SEWAGE CLARIFIER
摘要
申请公布号
CA457151(A)
申请公布日期
1949.05.31
申请号
CAD457151
申请日期
申请人
YEOMANS BROTHERS COMPANY
发明人
HAROLD T. JEFFREY
分类号
主分类号
代理机构
代理人
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地址
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