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发明名称
摘要
申请公布号
BE702419(A)
申请公布日期
1968.01.15
申请号
BED702419
申请日期
1967.08.08
申请人
发明人
分类号
A01B3/421;F15B15/06
主分类号
A01B3/421
代理机构
代理人
主权项
地址
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