.~.~.~> Having unison film advancing and lamp switching
DEFINITION
Classification: 396/192
Bulb substitution:
(under subclass 180) Subject matter wherein the illumination means includes extra flash bulbs which are automatically substituted for flash bulbs that have already been activated or are defective and which cannot produce light (e.g., flashcubes, flipflash, etc.).
(1) Note. A flash bulb is a light bulb giving a brief, intense light for exposure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
173, for multiple flashing from a single unit for a single exposure.
197, for bulb substitution of the illumination means without exposure synchronizer.
, FOR 789+, for foreign art collections involving a flash unit having spare lamps and camera synchronizing.
SEE OR SEARCH CLASS 362, Illumination,
13+, for lamp substitution or selection in photos:graphic lighting devices.
