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发明名称
摘要
申请公布号
BE669103(A)
申请公布日期
1965.12.31
申请号
BED669103
申请日期
1965.09.02
申请人
发明人
分类号
F16K1/02;F16K1/32;F16K1/36;F16K1/38;F16K41/04
主分类号
F16K1/02
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