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经营范围
发明名称
INCANDESCENT LAMP FILAMENT
摘要
申请公布号
CA341285(A)
申请公布日期
1934.05.01
申请号
CAD341285
申请日期
申请人
THE CANADIAN WESTINGHOUSE COMPANY
发明人
FRANK H. DRIGGS
分类号
主分类号
代理机构
代理人
主权项
地址
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