Inventor
DUSSELL WILLIAM O
US4 patents
Patents
4 patentsUS6411899B2Jun 25, 2002
Position based personal digital assistant
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US6266612B1Jul 24, 2001
Position based personal digital assistant
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US5938721AAug 17, 1999
Position based personal digital assistant
TRIMBLE NAVIGATION LTD1,269 citations98
US5633799AMay 27, 1997
Combined PC/104 and satellite positioning system
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