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发明名称
UNTERLEGSCHEIBE ZUM SICHERN VON SCHRAUBEN.
摘要
申请公布号
DE1850636(U)
申请公布日期
1962.04.26
申请号
DE196100O6218U
申请日期
1961.11.02
申请人
OPTISCHE WERKE G. RODENSTOCK
发明人
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主分类号
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