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发明名称
Valve
摘要
申请公布号
US1990423(A)
申请公布日期
1935.02.05
申请号
US19330686971
申请日期
1933.08.26
申请人
BEN BOHNENBLUST
发明人
BOHNENBLUST BEN
分类号
F16K3/08
主分类号
F16K3/08
代理机构
代理人
主权项
地址
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