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公开(公告)号:US2547449A
公开(公告)日:1951-04-03
申请号:US3757848
申请日:1948-07-08
Applicant: IBM
Inventor: DODGE RONALD D
IPC: B41J19/32
CPC classification number: B41J19/32
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43.Power-operated skip tabulating mechanism for typewriting machines 失效
Title translation: 用于打字机的电动跳过机制公开(公告)号:US2451722A
公开(公告)日:1948-10-19
申请号:US57955645
申请日:1945-02-24
Applicant: IBM
Inventor: DODGE RONALD D
IPC: B41J25/18
CPC classification number: B41J25/18
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公开(公告)号:US2330960A
公开(公告)日:1943-10-05
申请号:US41871141
申请日:1941-11-12
Applicant: IBM
Inventor: DODGE RONALD D
IPC: B41J25/18
CPC classification number: B41J25/18
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公开(公告)号:US2294722A
公开(公告)日:1942-09-01
申请号:US23456338
申请日:1938-10-12
Applicant: IBM
Inventor: DODGE RONALD D
IPC: B41J19/64
CPC classification number: B41J19/64
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公开(公告)号:US2156975A
公开(公告)日:1939-05-02
申请号:US13563937
申请日:1937-04-08
Applicant: IBM
Inventor: DODGE RONALD D
IPC: B41J19/32
CPC classification number: B41J19/32
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