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Filing date
Publication date
Application filedfiledCritical
Publication of NL256089ApublicationCriticalpatent/NL256089A/xx
H04M3/08—Indicating faults in circuits or apparatus
H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
G—PHYSICS
G06—COMPUTING OR CALCULATING; COUNTING
G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
G06M1/00—Design features of general application
G06M1/14—Design features of general application for transferring a condition from one stage to a higher stage
G06M1/143—Design features of general application for transferring a condition from one stage to a higher stage with drums