BE392836A - - Google Patents

Info

Publication number
BE392836A
BE392836A BE392836DA BE392836A BE 392836 A BE392836 A BE 392836A BE 392836D A BE392836D A BE 392836DA BE 392836 A BE392836 A BE 392836A
Authority
BE
Belgium
Prior art keywords
circuit
alarm
devices
relay
network
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE392836A publication Critical patent/BE392836A/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks

Landscapes

  • Burglar Alarm Systems (AREA)
BE392836D BE392836A (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
BE392836A true BE392836A (enrdf_load_stackoverflow)

Family

ID=60385

Family Applications (1)

Application Number Title Priority Date Filing Date
BE392836D BE392836A (enrdf_load_stackoverflow)

Country Status (1)

Country Link
BE (1) BE392836A (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
US1920742A (en) Protective system
BE392836A (enrdf_load_stackoverflow)
US5734325A (en) Alarm device
FR2651014A1 (fr) Coffre-fort a serrure a secret
FR2526474A1 (en) Intelligent monitoring system for bank safe deposit room - uses microcomputer to cyclically interrogate individual box lock detectors and to test for abnormal numbers or frequency of openings
US1890941A (en) Night vault
US3056125A (en) Safe and vault alarm devices
US4435701A (en) Portable intrusion alarm
US1578980A (en) Burglar-alarm system
WO1982001953A1 (en) Surveyance apparatus
US580552A (en) munro
US1669564A (en) Burglar-alarm system
US1579150A (en) Alarm apparatus
US351408A (en) stern
US904889A (en) Alarm device for fire-alarm boxes.
US1500805A (en) Vault protection system
US1081278A (en) Electric burglar-alarm.
US604033A (en) Electrical safe-protection system
BE407417A (enrdf_load_stackoverflow)
US626684A (en) Electrical safe-protection system
US819873A (en) Burglar-alarm.
US1868884A (en) Alarm system
BE397670A (enrdf_load_stackoverflow)
RU1836703C (ru) Устройство дл охранной сигнализации
BE347598A (enrdf_load_stackoverflow)