Lock and related key of electronic type

Details Lock and related key of electronic type Lock and related key of electronic type

1982-10-06

1985-04-02

Eisenzopf, Reinhard J.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

340505, 340542, 34082554, H01H 4722

Patent

active

045090920

ABSTRACT:
The invention concerns a lock and related key of the electronic type, which bases the unlocking of the lock on the matching of codes memorized in the lock and in the key, making it possible for one key to unlock a considerable number of pre-selected locks.

REFERENCES:
patent: 3859634 (1975-01-01), Perron et al.
patent: 4189712 (1980-02-01), Lemelson
patent: 4280118 (1981-07-01), Brunken et al.

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