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发明名称
Hydrant
摘要
申请公布号
US1944777(A)
申请公布日期
1934.01.23
申请号
US19310582777
申请日期
1931.12.23
申请人
THE KENNEDY VALVE MFG. CO.
发明人
BANKS FREDERICK R.
分类号
E01F9/018;E03B9/02
主分类号
E01F9/018
代理机构
代理人
主权项
地址
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