Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic {built in the vehicle body with provision for adjusting the alignment of the device housing with respect to the vehicle body}
Arrangements or adaptations of optical signalling or lighting devices the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic {built in the vehicle body with provision for adjusting the alignment of the device housing with respect to the vehicle body}