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发明名称
摘要
申请公布号
DE2105834(A1)
申请公布日期
1972.03.02
申请号
DE19712105834
申请日期
1971.01.25
申请人
SARGENT INDUSTRIES
发明人
分类号
F16K31/46;(IPC1-7):G05G17/00
主分类号
F16K31/46
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