(under subclass 281) Subject matter in which the indicator shows a status of the film resulting from a camera operation (e.g., end-of-film, film frame count, etc.).
SEE OR SEARCH THIS CLASS, SUBCLASS:
515, for a film cassette or cartridge with integral means to show film use which is not visible to an operator during normal operation.
, FOR 855, for a foreign art collection involving film advancing means including film position indicator.
