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经营范围
发明名称
Electric flashlights or torches
摘要
申请公布号
US2911637(A)
申请公布日期
1959.11.03
申请号
US19580735194
申请日期
1958.05.14
申请人
CARL VON DER CRONE & CO.
发明人
WORTMANN HERBERT
分类号
F21V23/00
主分类号
F21V23/00
代理机构
代理人
主权项
地址
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