[go: up one dir, main page]

FR805357A - Installation for sending a signal, warning or alarm, in particular to several subscribers connected to a central - Google Patents

Installation for sending a signal, warning or alarm, in particular to several subscribers connected to a central

Info

Publication number
FR805357A
FR805357A FR805357DA FR805357A FR 805357 A FR805357 A FR 805357A FR 805357D A FR805357D A FR 805357DA FR 805357 A FR805357 A FR 805357A
Authority
FR
France
Prior art keywords
warning
alarm
sending
installation
central
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR805357A publication Critical patent/FR805357A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR805357D 1935-02-18 1936-02-17 Installation for sending a signal, warning or alarm, in particular to several subscribers connected to a central Expired FR805357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE805357X 1935-02-18

Publications (1)

Publication Number Publication Date
FR805357A true FR805357A (en) 1936-11-18

Family

ID=6722320

Family Applications (1)

Application Number Title Priority Date Filing Date
FR805357D Expired FR805357A (en) 1935-02-18 1936-02-17 Installation for sending a signal, warning or alarm, in particular to several subscribers connected to a central

Country Status (1)

Country Link
FR (1) FR805357A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767214C (en) * 1937-08-14 1952-02-28 Mix & Genest A G Circuit arrangement for the transmission of signals via telecommunication lines which are used for other purposes, in particular for air raid warning systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767214C (en) * 1937-08-14 1952-02-28 Mix & Genest A G Circuit arrangement for the transmission of signals via telecommunication lines which are used for other purposes, in particular for air raid warning systems

Similar Documents

Publication Publication Date Title
FR805357A (en) Installation for sending a signal, warning or alarm, in particular to several subscribers connected to a central
FR788790A (en) Trailer coupling device
FR722639A (en) Alarm signaling signal for telephone circuits
FR740112A (en) Tractor hitch
FR804285A (en) Selective receiver for maritime alarm signals
FR560321A (en) Plug for water pipes, etc.
FR786504A (en) Device for coupling between a tractor on the road or on rails and a towed boat, and other similar applications
FR45805E (en) Trailer hitching device
FR785210A (en) Pipe assembly device
FR719940A (en) Alarm signal
FR615249A (en) Ear wash cannula
FR786104A (en) Device for increasing the difference between the fault level and the signal level, in remote signaling installations
FR857020A (en) Wave switch, especially for t transmitters. s. f.
FR907517A (en) Signaling systems, in particular for the transmission of signals over long lines
FR763776A (en) Alarm device, in particular for automobiles
FR802209A (en) New device to detect, reveal, announce or signal the approach of a vehicle on rails
FR545761A (en) Burglar alarm
FR703298A (en) Universal strike with alarm signal for lock
FR818975A (en) Burglar alarm system
FR577600A (en) Fire alarm signal
FR738544A (en) Alarm installation
FR831707A (en) Installation for the transmission of two states or quantities or information, in particular line protection installation, at high frequency
FR774434A (en) Device to prevent fraud on securities
FR796094A (en) Device to prevent theft or fraudulent use, especially of automobiles
CA219336A (en) Burglar alarm system