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发明名称
Rueckschlagventil
摘要
申请公布号
DE952047(C)
申请公布日期
1956.11.08
申请号
DE1953N006937
申请日期
1953.03.25
申请人
NORMALAIR LIMITED
发明人
SPECK ERIC HARDY
分类号
F16K15/03
主分类号
F16K15/03
代理机构
代理人
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