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经营范围
发明名称
VACUUM VALVE
摘要
申请公布号
GB1501458(A)
申请公布日期
1978.02.15
申请号
GB19750007604
申请日期
1975.02.24
申请人
BALZERS PATENT BETEILIGUNGS AG
发明人
分类号
F16K51/02;(IPC1-7):F16K3/10
主分类号
F16K51/02
代理机构
代理人
主权项
地址
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