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经营范围
发明名称
Flushing device
摘要
申请公布号
US1842715(A)
申请公布日期
1932.01.26
申请号
US19310520433
申请日期
1931.03.05
申请人
COLLISON WILLIAM J
发明人
COLLISON WILLIAM J.
分类号
E03D1/08
主分类号
E03D1/08
代理机构
代理人
主权项
地址
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