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发明名称
Valve
摘要
申请公布号
US1959644(A)
申请公布日期
1934.05.22
申请号
US19320641817
申请日期
1932.11.09
申请人
RICHARDSON MAURICE F
发明人
RICHARDSON MAURICE F.
分类号
F16K15/08
主分类号
F16K15/08
代理机构
代理人
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地址
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