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1.发明授权
公开(公告)号：US3510712A
公开(公告)日：1970-05-05
申请号：US3510712D
申请日：1967-10-20
Applicant: VARIAN ASSOCIATES
Inventor： RABINOWITZ MARIO , LAMONT LAWRENCE T JR
CPC classification number: H01J41/16
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