Title:
道路管理システム
Document Type and Number:
Japanese Patent JP4305361
Kind Code:
B2
Inventors:
Ken Shima
Kazunori Takahashi
Kazunori Takahashi
Application Number:
JP2004300906A
Publication Date:
July 29, 2009
Filing Date:
October 15, 2004
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
E01C23/01; G01B11/30
Domestic Patent References:
| JP2003288665A |
Attorney, Agent or Firm:
Manabu Inoue