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发明名称
Diaphragm for electronic-optical phase lenses
摘要
申请公布号
US2258129(A)
申请公布日期
1941.10.07
申请号
US19380237140
申请日期
1938.10.26
申请人
GENERAL ELECTRIC COMPANY
发明人
BRUCHE ERNST;RECKNAGEL ALFRED
分类号
H01J25/02
主分类号
H01J25/02
代理机构
代理人
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