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发明名称
ZEICHEN- BZW. SCHREIBSTIFTSPITZGERAET.
摘要
申请公布号
DE1883340(U)
申请公布日期
1963.11.21
申请号
DE196100O6141U
申请日期
1961.08.21
申请人
ADOLF OTTERBEIN
发明人
ADOLF OTTERBEIN
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主分类号
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