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公开(公告)号：US3345223A
公开(公告)日：1967-10-03
申请号：US49081465
申请日：1965-09-28
Applicant: IBM
Inventor： ARNOLD REISMAN , MELVIN BERKENBILT , PAPAZIAN SATENIK A , GEORGE CHEROFF
IPC: C30B25/02
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