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发明名称
SCHUTZBELAG GEGEN RADIOAKTIVE STRAHLEN.
摘要
申请公布号
DE1697280(U)
申请公布日期
1955.04.28
申请号
DE195500N5090U
申请日期
1955.01.14
申请人
NATRONZELLSTOFF- UND PAPIERFABRIKEN AKTIENGESELLSCHAFT
发明人
分类号
主分类号
代理机构
代理人
主权项
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