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发明名称
Ringmechanik fuer Loseblattbuecher
摘要
申请公布号
DE1179539(B)
申请公布日期
1964.10.15
申请号
DE1960B059914
申请日期
1960.10.29
申请人
BRAECKER A. G.
发明人
分类号
B42F13/22
主分类号
B42F13/22
代理机构
代理人
主权项
地址
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