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Method of presuming traffic conditions by using floating car data and system for presuming and presenting traffic conditions by using floating data Grant 6,546,330 - Fushiki , et al. April 8, 2 | 2003-04-08 |
Method of presuming traffic conditions by using floating car data and system for presuming and presenting traffic conditions by using floating data App 20020120389 - Fushiki, Takumi ;   et al. | 2002-08-29 |
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