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公开(公告)号：US3412706A
公开(公告)日：1968-11-26
申请号：US44697565
申请日：1965-04-09
Applicant: BOWSER INC
Inventor： TOPOL GEORGE J , HINKLE BARRY A
IPC: G01L9/00
CPC classification number: G01L9/007
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