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公开(公告)号:US2088408A
公开(公告)日:1937-07-27
申请号:US65024633
申请日:1933-01-05
Applicant: IBM
Inventor: DALY GEORGE F , RYAN JOHN L
IPC: G06F7/46
CPC classification number: G06F7/465
公开(公告)号:US2088408A
公开(公告)日:1937-07-27
申请号:US65024633
申请日:1933-01-05
Applicant: IBM
Inventor: DALY GEORGE F , RYAN JOHN L
IPC: G06F7/46
CPC classification number: G06F7/465