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公开(公告)号：US3341795A
公开(公告)日：1967-09-12
申请号：US50879965
申请日：1965-11-19
Applicant: IBM
Inventor： NEWMAN ERNEST G , SMITH ROY R , STOKES KONRAD H
IPC: G01L1/18
CPC classification number: G01L1/18
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