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发明名称
摘要
申请公布号
NL7116882(A)
申请公布日期
1972.06.13
申请号
NL19710016882
申请日期
1971.12.09
申请人
发明人
分类号
A47B96/00;D21F5/00;E04B2/74;G03C1/74;(IPC1-7):D21F5/18;F26B13/14
主分类号
A47B96/00
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