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公开(公告)号:US2104546A
公开(公告)日:1938-01-04
申请号:US75494634
申请日:1934-11-27
Applicant: IBM
Inventor: PENNELL LAWRENCE P , STONE WALTER F , NAYLOR WILLIAM E
IPC: B07C5/20
CPC classification number: B07C5/20
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公开(公告)号:US2195868A
公开(公告)日:1940-04-02
申请号:US19794338
申请日:1938-03-24
Applicant: IBM
Inventor: NAYLOR WILLIAM E , SCHLESSIGER PAUL J
IPC: G08G1/01
CPC classification number: G08G1/0104
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公开(公告)号:US2111124A
公开(公告)日:1938-03-15
申请号:US11606336
申请日:1936-12-16
Applicant: IBM
Inventor: NAYLOR WILLIAM E
IPC: B41K3/64
CPC classification number: B41K3/64
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