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公开(公告)号:CA643692A
公开(公告)日:1962-06-26
申请号:CA643692D
Applicant: IBM
Inventor: BECKER FRANK E , PALMER LEON E
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公开(公告)号:BE582918A
公开(公告)日:1960-01-18
申请号:BE582918
申请日:1959-09-22
Applicant: IBM
Inventor: BECKER FRANK E , PALMER LEON E
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