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dc.contributor.authorBlonder, Gregen_US
dc.coverage.spatialUSen_US
dc.date.accessioned2019-07-10T17:16:53Z
dc.date.available2019-07-10T17:16:53Z
dc.date.issued1997-04-15
dc.date.submitted1995-11-08
dc.identifierhttps://patents.google.com/patent/US5620371A/en
dc.identifier.citationGreg Blonder. "Computer trackball." U.S. Patent 5,620,371-A.
dc.identifier.govdoc5,620,371
dc.identifier.urihttps://hdl.handle.net/2144/36347
dc.description.abstractA computer trackball comprises a transparent outer sphere inside of which is disposed a second inner sphere. The outer diameter of the inner sphere is a little bit smaller than the inner diameter of the outer sphere. Disposed on the outer surface of the inner sphere, at one "end" thereof is a logo or other graphical image. The inner sphere tends to maintain itself in a predetermined orientation--e.g., with the graphical image pointing directly "up" relative to the keyboard or other housing fin which the trackball is held--notwithstanding rotation of the outer sphere by a user in the course of operating the trackball.en_US
dc.subjectComputer mouseen_US
dc.subjectTrackballsen_US
dc.titleComputer trackballen_US
dc.typePatenten_US
dc.description.versionPublished versionen_US
pubs.elements-sourcemanual-entryen_US
pubs.notesEmbargo: Not knownen_US
pubs.organisational-groupBoston Universityen_US
pubs.organisational-groupBoston University, College of Engineeringen_US
pubs.organisational-groupBoston University, College of Engineering, Department of Mechanical Engineeringen_US
dc.identifier.mycv429630


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