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经营范围
发明名称
Mittels Elektronenstrahl veraenderlicher Kondensator
摘要
申请公布号
DE757580(C)
申请公布日期
1953.06.01
申请号
DE1939M146450D
申请日期
1939.11.12
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY LTD.
发明人
BRETT GEORGE FAIRBURN;LEVIN NYMAN
分类号
H01J7/46
主分类号
H01J7/46
代理机构
代理人
主权项
地址
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