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公开(公告)号：US3444416A
公开(公告)日：1969-05-13
申请号：US3444416D
申请日：1967-09-06
Applicant: SONY CORP
Inventor： YOSHIDA SUSUMU , TSUBOI TAKAMITSU , UENO KIICHI
CPC classification number: H01J29/04 , H01J3/027 , H01J9/04 , H01J29/485
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