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发明名称
摘要
申请公布号
NL6704972(A)
申请公布日期
1968.01.29
申请号
NL19670004972
申请日期
1967.04.07
申请人
发明人
分类号
F04B1/107;F04B43/067;F04B49/12
主分类号
F04B1/107
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代理人
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