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经营范围
发明名称
Umsteckbare elektrische Leuchte
摘要
申请公布号
DE532320(C)
申请公布日期
1931.08.26
申请号
DED532320D
申请日期
1930.05.01
申请人
EMIL BING
发明人
分类号
F21V21/10
主分类号
F21V21/10
代理机构
代理人
主权项
地址
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