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发明名称
Single operation normally closed valve
摘要
申请公布号
US2815882(A)
申请公布日期
1957.12.10
申请号
US19540435145
申请日期
1954.06.08
申请人
CONNELL MAURICE W
发明人
CONNELL MAURICE W.
分类号
F15B15/19;F16K17/40
主分类号
F15B15/19
代理机构
代理人
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地址
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