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经营范围
发明名称
Improvements in or relating to thermionic valve circuits
摘要
申请公布号
GB446778(A)
申请公布日期
1936.05.06
申请号
GB19350003047
申请日期
1935.01.30
申请人
JAN RUDOLF HAMILTON FORMAN;BAIRD TELEVISION LIMITED
发明人
分类号
H03D1/26
主分类号
H03D1/26
代理机构
代理人
主权项
地址
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