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经营范围
发明名称
Improvements in screw caps for electric lamps and electric discharge vessels
摘要
申请公布号
GB481047(A)
申请公布日期
1938.03.04
申请号
GB19370007313
申请日期
1937.03.12
申请人
THE GENERAL ELECTRIC COMPANY, LIMITED;MARCELLO PIRANI;COLIN JAMES SMITHELLS
发明人
分类号
H01K1/46
主分类号
H01K1/46
代理机构
代理人
主权项
地址
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