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公开(公告)号：US3139262A
公开(公告)日：1964-06-30
申请号：US15873461
申请日：1961-12-12
Applicant: VACTRONIC LAB EQUIPMENT INC
Inventor： MORRIS ROBERT A , SALAT ROBERT F , EDMUND KUJAWSKI
IPC: G05D7/01
CPC classification number: G05D7/0106
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