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发明名称
Einrichtung zur Erzeugung von Gefuegebildern mit Elektronenstrahlen
摘要
申请公布号
DE909156(C)
申请公布日期
1954.04.15
申请号
DE1932S025684D
申请日期
1932.05.15
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
分类号
H01J37/295
主分类号
H01J37/295
代理机构
代理人
主权项
地址
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