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发明名称
Rückenteil für Loseblattbücher, Alben etc., mit Mitteln zum Festhalten wenigstens eines an ihm auswechselbar befestigten Loseblattes.
摘要
申请公布号
CH168740(A)
申请公布日期
1934.04.30
申请号
CHD168740
申请日期
1932.09.16
申请人
KELLNER,OTTO
发明人
KELLNER,OTTO
分类号
B42F7/00
主分类号
B42F7/00
代理机构
代理人
主权项
地址
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