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1.发明授权Rotatable primary element for level detection provided with sealed bearing means 失效用于水平检测的可旋转主要元件，带有密封的轴承装置
公开(公告)号：US3366754A
公开(公告)日：1968-01-30
申请号：US53198666
申请日：1966-03-04
Applicant: COMBUSTION ENG
Inventor： HOSS MAURICE S , BAILEY MARVIN D
IPC: G01F23/24
CPC classification number: G01F23/241
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