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经营范围
发明名称
Hydraulic valve
摘要
申请公布号
US2087407(A)
申请公布日期
1937.07.20
申请号
US19340752032
申请日期
1934.11.08
申请人
WILLIAM JONES
发明人
JONES WILLIAM
分类号
F16K15/02
主分类号
F16K15/02
代理机构
代理人
主权项
地址
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