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公开(公告)号：US3224071A
公开(公告)日：1965-12-21
申请号：US1479360
申请日：1960-03-14
Applicant: PHILIPS CORP
Inventor： ROBERTO LEVI , VANN EGGLESTON ROBERT
CPC classification number: H01J9/04 , B22F7/002 , B23K1/19 , B23K35/005 , Y10T29/49812
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