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公开(公告)号：US2755243A
公开(公告)日：1956-07-17
申请号：US28754452
申请日：1952-05-13
Applicant: BECKMAN INSTRUMENTS INC
Inventor： BECKMAN ARNOLD O , ARTHUR EDWIN P
IPC: G01N27/30
CPC classification number: G01N27/401
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2.发明授权Meter pointer position monitoring means utilizing heat absorbing vane and thermistors 失效仪表指针位置监测装置利用吸热叶片和热敏电阻
公开(公告)号：US3234540A
公开(公告)日：1966-02-08
申请号：US32872463
申请日：1963-12-06
Applicant: BECKMAN INSTRUMENTS INC
Inventor： BECKMAN ARNOLD O
IPC: G01R1/02
CPC classification number: G01R1/02
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