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公开(公告)号：US3551670A
公开(公告)日：1970-12-29
申请号：US3551670D
申请日：1968-07-03
Applicant: BOWSER INC
Inventor： TOPOL GEORGE J , CARR LARRY R
IPC: G01F23/292 , G01N21/85 , G05D9/12 , G01N21/26 , G01N23/12
CPC classification number: G01F23/2921 , G01N21/8507 , G05D9/12
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