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经营范围
发明名称
HOHLMANTEL-ISOLATOR.
摘要
申请公布号
DE1656191(U)
申请公布日期
1953.05.21
申请号
DE195300N2866U
申请日期
1953.03.13
申请人
DR. EWALD NELKEN
发明人
DR. EWALD NELKEN
分类号
主分类号
代理机构
代理人
主权项
地址
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