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经营范围
发明名称
VALVE
摘要
申请公布号
PL263858(A1)
申请公布日期
1988.11.10
申请号
PL19870263858
申请日期
1987.01.26
申请人
发明人
分类号
F16K;(IPC1-7):F16K/
主分类号
F16K
代理机构
代理人
主权项
地址
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