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经营范围
发明名称
Improvements in or relating to devices comprising electrical condensers adapted to vary their capacity periodically
摘要
申请公布号
GB774116(A)
申请公布日期
1957.05.08
申请号
GB19530035637
申请日期
1953.12.22
申请人
ELECTRONIC INSTRUMENTS LIMITED;GRAHEM HENRY WILSTEAD
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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