(under subclass 155) Subject matter wherein the illumination means includes extra flash bulbs which are automatically exchanged for flash bulbs that have already been activated or are defective and which cannot produce light (e.g., flashcubes, flipflash, etc.).
SEE OR SEARCH THIS CLASS, SUBCLASS:
173, for multiple flashing from a single unit for a single exposure.
192, for bulb substitution of the illumination means in timed relationship with an exposure.
, FOR 794, for a foreign art collection involving object illumination with camera structure having lamp substitution.
SEE OR SEARCH CLASS
362, Illumination, 13, for lamp substitution or selection in photos:graphic lighting devices.
