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公开(公告)号：US2915896A
公开(公告)日：1959-12-08
申请号：US55025755
申请日：1955-12-01
Applicant: GEN MOTORS CORP
Inventor： BOOTH JR FREDERICK E , WANTTAJA GLENN E , COLTEN ROBERT B
IPC: G01H1/10
CPC classification number: G01H1/10
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