| 摘要 |
PROBLEM TO BE SOLVED: To provide a hat mirror so as not to neglect caution in rear direction while caring in front direction on performing traffic control. SOLUTION: This hat mirror (1) is attached on the brim (5) of a protective hat (6) with a hinge (4) by using a hook (7), and its angle is adjusted by the hinge (4) for adjusting a mirror surface (2) with the line of a vision of a utilizing person. COPYRIGHT: (C)2008,JPO&INPIT
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