Electrical pulse counters – pulse dividers – or shift registers: c – Applications – Counting based on number of times machine or apparatus operates
Patent
1982-12-06
1985-11-12
Heyman, John S.
Electrical pulse counters, pulse dividers, or shift registers: c
Applications
Counting based on number of times machine or apparatus operates
364300, G11B 2304, G06M 108
Patent
active
045532524
ABSTRACT:
A cartridge housing contains a semi-conductor or memory for storing digital information which may be accessed by an external device for display on a screen. The cartridge includes a counting circuit for counting the number of times the cartridge is used and a display for exhibiting the count.
REFERENCES:
patent: 3604624 (1971-09-01), Miura et al.
patent: 3678215 (1972-07-01), Kihara
patent: 3761643 (1973-09-01), Keeler, II
patent: 4095791 (1978-06-01), Smith et al.
patent: 4119813 (1978-10-01), Sato
patent: 4150283 (1979-04-01), Fleischer
patent: 4259668 (1981-03-01), Nishimura et al.
patent: 4283056 (1981-08-01), Miller
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