| 摘要 |
<p>An indicator arrangement provided on a motor vehicle, the indicator arrangement including a unit (1) and a means (3, 4) releaseably to mount the unit in the vehicle in effective electrical contact with circuitry (24) in the vehicle, the circuitry in the vehicle including at least one indicator (34) visible from the exterior of the vehicle, the combination of the unit (1) and the circuitry incorporating a time responsive device (30) adapted to provide an output to control the indicator (34), the output being changed on a predetermined date, at least that part of the time responsive device (30) that determines the predetermined date forming part of said unit (1).</p> |
