(under subclass 400) Subject matter comprising methods or apparatus for maintaining proper time or phase correspondence between a transmitter and a receiver of the facsimile system.
SEE OR SEARCH CLASS
348, Television,
500+, for television synchronization.
361, Electricity: Electrical Systems and Devices,
243+, for electrical systems including synchronization of shafts
370, Multiplex Communications, 503+, for time division multiplex synchronization.
