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发明名称
摘要
申请公布号
NL6809336(A)
申请公布日期
1969.01.07
申请号
NL19680009336
申请日期
1968.07.02
申请人
发明人
分类号
D06P3/06;D06P3/74;D06P3/79;D06P5/12;(IPC1-7):D06P/
主分类号
D06P3/06
代理机构
代理人
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