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发明名称
Valve structure in high performance servo system
摘要
申请公布号
US3163179(A)
申请公布日期
1964.12.29
申请号
US19610130220
申请日期
1961.07.28
申请人
LJUNGGREN THELMA L
发明人
LJUNGGREN THELMA L.
分类号
F15B9/10;F15B13/04
主分类号
F15B9/10
代理机构
代理人
主权项
地址
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