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发明名称
Valve
摘要
申请公布号
US1976796(A)
申请公布日期
1934.10.16
申请号
US19310542238
申请日期
1931.06.05
申请人
MILNER WILLIAM B
发明人
MILNER WILLIAM B.
分类号
F16K41/12
主分类号
F16K41/12
代理机构
代理人
主权项
地址
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