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Parallax induced pointing error avoidance method and means for systems using touch screen overlays
US H000,716 H1
Filed
: 11/16/1987
Issued
: 12/05/1989
Est. Priority Date
: 11/16/1987
Status: Expired due to Term
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Current Assignee
International Business Machines Corporation
Original Assignee
International Business Machines Corporation
Inventors
McDonald, James E.
,
Stone, Jimmy D.
Primary Examiner(s)
NOT, DEFINED
Assistant Examiner(s)
NOT, DEFINED
Application Number
US07/121,024
Publication Number
US H000,716 H1
Time in Patent Office
750 Days
Field of Search
340/706-712, 178/18, 178/19
US Class Current
345/173
CPC Class Codes
N/A
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