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公开(公告)号:CA348050A
公开(公告)日:1935-02-05
申请号:CA348050D
Applicant: TABULATING MACHINE CO , IBM
Inventor: FULLER FREDERICK L
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公开(公告)号:CA348050A
公开(公告)日:1935-02-05
申请号:CA348050D
Applicant: TABULATING MACHINE CO , IBM
Inventor: FULLER FREDERICK L