warnanzeige should a headlamp for vehicles

摘要

1,264,325. Lamp failure warning device. JOSEPH LUCAS (INDUSTRIES) Ltd. March 28, 1969 [April 18, 1968], No.18306/68. Heading G2J. A lamp monitoring installation in a road vehicle comprises optical cables 16 to 19 transmitting light from lamps 12 to 15 to instruments 21 to 24 respectively which require to be illuminated at night and are mounted on the dashboard 25, so that if any lamp fails the associated instrument will not be illuminated.