PROBLEM TO BE SOLVED: To enable collection of vehicular history data from a plurality of company sites in which vehicular history data of a secondhand car is stored with use of a common vehicle body number, and enable the vehicular history data to be retrieved and used.;SOLUTION: In a vehicular history data collecting/retrieving website system, regarding a plurality of company sites in which vehicular history data groups having site-specific common vehicle body numbers are stored, a database is provided in a vehicular information integration center website, vehicular history data having a common vehicle body number stored in the company sites is extracted according to user's selection, and the vehicle history data is registered in the database with use of the vehicle body number as a key.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2018,JPO&INPIT
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