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发明名称
Perfectionnements aux tubes à décharge ou autres démontables
摘要
申请公布号
FR760742(A)
申请公布日期
1934.03.01
申请号
FRD760742
申请日期
1932.12.01
申请人
COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL
发明人
分类号
H01J5/30
主分类号
H01J5/30
代理机构
代理人
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地址
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