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公开(公告)号：US3211056A
公开(公告)日：1965-10-12
申请号：US15530061
申请日：1961-11-28
Applicant: AMERICAN INSTR CO INC
Inventor： GOLDSTEIN JACK M , LOWY GEORGE W
IPC: G01J3/04
CPC classification number: G01J3/04
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