-
公开(公告)号:US2841706A
公开(公告)日:1958-07-01
申请号:US41657254
申请日:1954-03-16
Applicant: IBM
Inventor: KUENSTNER ROBERT C , CRAWFORD DAVID J
公开(公告)号:US2841706A
公开(公告)日:1958-07-01
申请号:US41657254
申请日:1954-03-16
Applicant: IBM
Inventor: KUENSTNER ROBERT C , CRAWFORD DAVID J