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经营范围
发明名称
KONFERENZBLOCK.
摘要
申请公布号
DE1774129(U)
申请公布日期
1958.09.18
申请号
DE195800G7932U
申请日期
1958.06.20
申请人
ERNST GRAH JUN.
发明人
ERNST GRAH JUN.
分类号
主分类号
代理机构
代理人
主权项
地址
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