Inventor
WHITE JR MARVIN S
US3 patents
Patents
3 patentsUS4796191AJan 3, 1989
Vehicle navigational system and method
ETAK INC271 citations97
US5694534ADec 2, 1997
Apparatus storing a presentation of topological structures and methods of building and searching the representation
ETAK INC80 citations92
US5546107AAug 13, 1996
Automatic chain-based conflation of digital maps
ETAK INC130 citations92