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经营范围
发明名称
Pressure reducing valve
摘要
申请公布号
US1893254(A)
申请公布日期
1933.01.03
申请号
US19310553497
申请日期
1931.07.28
申请人
SWEENEY BERNARD J
发明人
SWEENEY BERNARD J.
分类号
G05D16/06
主分类号
G05D16/06
代理机构
代理人
主权项
地址
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