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经营范围
发明名称
Rubber float valve
摘要
申请公布号
US1775934(A)
申请公布日期
1930.09.16
申请号
US19270200660
申请日期
1927.06.22
申请人
DELANY EDWARD L
发明人
DELANY EDWARD L.
分类号
E03D1/34
主分类号
E03D1/34
代理机构
代理人
主权项
地址
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