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经营范围
发明名称
Closet-flushing device
摘要
申请公布号
US1780810(A)
申请公布日期
1930.11.04
申请号
US19300422403
申请日期
1930.01.21
申请人
WATKINS BROWN CHARLES
发明人
BROWN CHARLES WATKINS
分类号
E03D1/14
主分类号
E03D1/14
代理机构
代理人
主权项
地址
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