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公开(公告)号:US2993999A
公开(公告)日:1961-07-25
申请号:US84988559
申请日:1959-10-30
Applicant: IBM
Inventor: CASMIR KAY , MCMURTRIE JOHN S , NESTORK WILLIAM J , STURTEVANT VERNON O
公开(公告)号:US2993999A
公开(公告)日:1961-07-25
申请号:US84988559
申请日:1959-10-30
Applicant: IBM
Inventor: CASMIR KAY , MCMURTRIE JOHN S , NESTORK WILLIAM J , STURTEVANT VERNON O