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公开(公告)号：US3513938A
公开(公告)日：1970-05-26
申请号：US3513938D
申请日：1969-06-02
Applicant: IBM
Inventor： BUEHNER WILLIAM L , GREER DONALD L , MCCORNACK RICHARD W , O'BRIAN PAUL L , SIMPSON HENRY W
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公开(公告)号：US3516528A
公开(公告)日：1970-06-23
申请号：US3516528D
申请日：1968-01-16
Applicant: IBM
Inventor： DAVIDGE RONALD V , GREER DONALD L , MCCORMACK RICHARD W , O'DANIEL JEROME B
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公开(公告)号：US3592313A
公开(公告)日：1971-07-13
申请号：US3592313D
申请日：1968-07-15
Applicant: IBM
Inventor： CASTLE WILLIAM H , GREER DONALD L
Abstract: An encoding keyboard constructed like that disclosed in U.S. Pat. No. 3,086,635, entitled ''''Keylever Storage Mechanism,'''' issued Apr. 23, 1963, to Leon E. Palmer is provided with a novel dual keylever construction that properly time-sequences up and down shift code entries with respect to character entries. The stroke storage provided in the keyboard of U.S. Pat. No. 3,086,635 is expanded to provide storage for two characters, when necessary, to accommodate the characteristically rapid and arhythmic, three-stroke sequence, ''''upshift-print-downshift.
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公开(公告)号：US3451520A
公开(公告)日：1969-06-24
申请号：US3451520D
申请日：1967-06-21
Applicant: IBM
Inventor： GREER DONALD L , O'DANIEL JEROME B , YOSMALI KRIKOR
CPC classification number: B41J35/14
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Patent Agency Ranking
公开(公告)号：US3391774A
公开(公告)日：1968-07-09
申请号：US65378367
申请日：1967-07-17
Applicant: IBM
Inventor： GREER DONALD L
IPC: B41J7/48
CPC classification number: B41J7/48
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公开(公告)号：CA906423A
公开(公告)日：1972-08-01
申请号：CA906423D
Applicant: IBM
Inventor： SIMPSON HENRY W , GREER DONALD L , BUEHNER WILLIAM L , MCCORNACK RICHARD W , O'BRIAN PAUL L
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公开(公告)号：CA833955A
公开(公告)日：1970-02-10
申请号：CA833955D
Applicant: IBM
Inventor： GREER DONALD L , O'DANIEL JEROME B , YOSMALI KRIKOR
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公开(公告)号：CA898176A
公开(公告)日：1972-04-18
申请号：CA898176D
Applicant: IBM
Inventor： CASTLE WILLIAM H , GREER DONALD L
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