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公开(公告)号：US3452179A
公开(公告)日：1969-06-24
申请号：US3452179D
申请日：1967-04-12
Applicant: US AIR FORCE
Inventor： RYAN CHARLES E , CONSIDINE DENNIS P
IPC: C30B13/22 , H01J37/065 , H01J37/305 , H01J37/04 , H01J23/08 , H01J29/46
CPC classification number: H01J37/065 , C30B13/22 , H01J37/305
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