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经营范围
发明名称
KINDERRECHENMASCHINE.
摘要
申请公布号
DE1602480(U)
申请公布日期
1950.03.02
申请号
DE194800D5272U
申请日期
1948.11.18
申请人
FRITZ WEIGEL
发明人
FRITZ WEIGEL
分类号
主分类号
代理机构
代理人
主权项
地址
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