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发明名称
Schraffierlineal
摘要
申请公布号
AT165851(B)
申请公布日期
1950.05.10
申请号
ATD165851
申请日期
1948.02.23
申请人
HANS RECKNAGEL
发明人
HANS RECKNAGEL
分类号
主分类号
代理机构
代理人
主权项
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