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公开(公告)号：US3010892A
公开(公告)日：1961-11-28
申请号：US80979759
申请日：1959-04-29
Applicant: GUNTER AXT
Inventor： GUNTER AXT
IPC: C01B13/11
CPC classification number: C01B13/11 , C01B2201/14 , C01B2201/34 , C01B2201/76
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