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经营范围
发明名称
Relief valve
摘要
申请公布号
US2189084(A)
申请公布日期
1940.02.06
申请号
US19380248720
申请日期
1938.12.31
申请人
THE PFAUDLER CO.
发明人
SCHANCK WILLIAM DANA
分类号
F16K24/00
主分类号
F16K24/00
代理机构
代理人
主权项
地址
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