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经营范围
发明名称
Improvements in or relating to the sealing of electric conductors through quartz
摘要
申请公布号
GB520635(A)
申请公布日期
1940.04.30
申请号
GB19380030899
申请日期
1938.10.26
申请人
THE THERMAL SYNDICATE LIMITED;FREDERICK REYNOLDS
发明人
分类号
H01J9/32
主分类号
H01J9/32
代理机构
代理人
主权项
地址
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