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公开(公告)号：US3309660A
公开(公告)日：1967-03-14
申请号：US19670462
申请日：1962-05-22
Applicant: GEORGES MOURIER
Inventor： GEORGES MOURIER
IPC: H01J25/44 , H01J25/593 , H03F1/20
CPC classification number: H03F1/20 , H01J25/44 , H01J25/593
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