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公开(公告)号：US3087331A
公开(公告)日：1963-04-30
申请号：US85490659
申请日：1959-11-23
Applicant: FIELDEN ELECTRONICS LTD
Inventor： ERNEST FIELDEN JOHN
CPC classification number: G01L1/086 , G01L1/142 , G01L11/008
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公开(公告)号：US2996647A
公开(公告)日：1961-08-15
申请号：US79600359
申请日：1959-02-27
Applicant: FIELDEN ELECTRONICS LTD
Inventor： ERNEST FIELDEN JOHN
IPC: G05D3/14
CPC classification number: G05D3/14
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3.发明授权Electronic oscillators and self-balancing potentiometer means incorporating such oscillators 失效电子振荡器和自平衡电位计意味着并入这种振荡器
公开(公告)号：US3195040A
公开(公告)日：1965-07-13
申请号：US8783261
申请日：1961-02-08
Applicant: FIELDEN ELECTRONICS LTD
Inventor： ERNEST FIELDEN JOHN , ARTHUR WORLAND
CPC classification number: H03F3/387 , H01C10/14 , H03B5/00 , H03B5/1203 , H03B5/1231 , H03B5/1296
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公开(公告)号：US2829254A
公开(公告)日：1958-04-01
申请号：US50630755
申请日：1955-05-05
Applicant: FIELDEN ELECTRONICS LTD
Inventor： ERNEST FIELDEN JOHN
IPC: G01F23/26
CPC classification number: G01F23/266
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