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发明名称
Valve
摘要
申请公布号
US1825028(A)
申请公布日期
1931.09.29
申请号
US19300465353
申请日期
1930.07.02
申请人
TOWNILL ERVIN A
发明人
TOWNILL ERVIN A.
分类号
F16K41/04
主分类号
F16K41/04
代理机构
代理人
主权项
地址
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