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发明名称
Tube à onde progressive
摘要
申请公布号
FR1090241(A)
申请公布日期
1955.03.29
申请号
FRD1090241
申请日期
1953.11.10
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
分类号
H01J23/24
主分类号
H01J23/24
代理机构
代理人
主权项
地址
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