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公开(公告)号:US3021439A
公开(公告)日:1962-02-13
申请号:US86058259
申请日:1959-12-18
Applicant: IBM
Inventor: ANDERSON JOHN L
CPC classification number: G11C19/32 , F02P17/02 , G01R13/208 , Y10S505/83
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公开(公告)号:CA875230A
公开(公告)日:1971-07-06
申请号:CA875230D
Applicant: IBM
Inventor: ANDERSON JOHN L , LEILICH HANS-OTTO G , REDFIELD DAVID H
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