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公开(公告)号：US3432663A
公开(公告)日：1969-03-11
申请号：US3432663D
申请日：1964-09-30
Applicant: FIELD EMISSION CORP
Inventor： ANDERSON ROBERT L , DYKE WALTER P , GRUNDHAUSER FRANK J , TROLAN J KENNETH
CPC classification number: H03K3/537
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