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公开(公告)号：US2512277A
公开(公告)日：1950-06-20
申请号：US54159944
申请日：1944-06-22
Applicant: GEN ELECTRIC
Inventor： JACOBSEN HENRY W
IPC: H01J5/24
CPC classification number: H01J5/24 , H01J2893/0039 , Y10T279/188
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公开(公告)号：US2512276A
公开(公告)日：1950-06-20
申请号：US54151944
申请日：1944-06-22
Applicant: GEN ELECTRIC
Inventor： JACOBSEN HENRY W
IPC: H01J5/24
CPC classification number: H01J5/24 , H01J2893/0039
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