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公开(公告)号:US3015892A
公开(公告)日:1962-01-09
申请号:US4409960
申请日:1960-07-20
Applicant: STUART EDWARD O
Inventor: STUART EDWARD O
IPC: G01B3/30
CPC classification number: G01B3/30
公开(公告)号:US3015892A
公开(公告)日:1962-01-09
申请号:US4409960
申请日:1960-07-20
Applicant: STUART EDWARD O
Inventor: STUART EDWARD O
IPC: G01B3/30
CPC classification number: G01B3/30