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公开(公告)号:US3298758A
公开(公告)日:1967-01-17
申请号:US36344864
申请日:1964-04-29
Applicant: AVO LTD
Inventor: SUTHERLAND MACADIE HUGH
IPC: F16C27/08 , G01R1/10 , G04B31/02
CPC classification number: F16C27/08 , G01R1/10 , G04B31/02