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发明名称
Improvements relating to the manufacture of heaters for indirectly heated cathodes of discharge tubes
摘要
申请公布号
GB610606(A)
申请公布日期
1948.10.19
申请号
GB19460011132
申请日期
1946.04.11
申请人
FERRANTI LIMITED;WALTER RICHARD JOSEPH MAYES;STANLEY WILLIAM MILVERTON
发明人
分类号
H01J9/08
主分类号
H01J9/08
代理机构
代理人
主权项
地址
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