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经营范围
发明名称
VARIABLE PNEUMATIC RESISTANCE
摘要
申请公布号
GB1518816(A)
申请公布日期
1978.07.26
申请号
GB19750029782
申请日期
1975.07.16
申请人
COMPTEURS SCHLUMBERGER
发明人
分类号
F15C1/02;(IPC1-7):F16K3/04
主分类号
F15C1/02
代理机构
代理人
主权项
地址
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