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发明名称
Circulatory supply and drainage system for bathtubs
摘要
申请公布号
US2575636(A)
申请公布日期
1951.11.20
申请号
US19500142461
申请日期
1950.02.04
申请人
PATCH WILLIAM M
发明人
PATCH WILLIAM M.
分类号
E03C1/23
主分类号
E03C1/23
代理机构
代理人
主权项
地址
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