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经营范围
发明名称
Waste fitting
摘要
申请公布号
US2644543(A)
申请公布日期
1953.07.07
申请号
US19490109857
申请日期
1949.08.12
申请人
FROST COMPANY
发明人
RUSSELL ROBERT E.
分类号
E03C1/284
主分类号
E03C1/284
代理机构
代理人
主权项
地址
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