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发明名称
摘要
申请公布号
NL7201940(A)
申请公布日期
1972.08.29
申请号
NL19720001940
申请日期
1972.02.15
申请人
发明人
分类号
F15B11/06;(IPC1-7):F15B11/06
主分类号
F15B11/06
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