FR495108A - Announcer for telephone calls - Google Patents

Announcer for telephone calls

Info

Publication number
FR495108A
FR495108A FR495108DA FR495108A FR 495108 A FR495108 A FR 495108A FR 495108D A FR495108D A FR 495108DA FR 495108 A FR495108 A FR 495108A
Authority
FR
France
Prior art keywords
announcer
telephone calls
calls
telephone
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)
Inventor
Georges-Joseph-Louis Routin
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.)
GEORGES JOSEPH LOUIS ROUTIN
Original Assignee
GEORGES JOSEPH LOUIS ROUTIN
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 GEORGES JOSEPH LOUIS ROUTIN filed Critical GEORGES JOSEPH LOUIS ROUTIN
Application granted granted Critical
Publication of FR495108A publication Critical patent/FR495108A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/24—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane
    • G08B5/28—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane with hinged flap or arm

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR495108D 1916-03-10 1916-03-10 Announcer for telephone calls Expired FR495108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR495108T 1916-03-10

Publications (1)

Publication Number Publication Date
FR495108A true FR495108A (en) 1919-09-30

Family

ID=1530691

Family Applications (1)

Application Number Title Priority Date Filing Date
FR495108D Expired FR495108A (en) 1916-03-10 1916-03-10 Announcer for telephone calls

Country Status (1)

Country Link
FR (1) FR495108A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117961B (en) * 1956-11-27 1961-11-23 Elektro App Werke J W Stalin V Finely adjustable spring-back for flaps rotatably mounted in a small angular range between two stops, in particular flap-like magnet armatures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1117961B (en) * 1956-11-27 1961-11-23 Elektro App Werke J W Stalin V Finely adjustable spring-back for flaps rotatably mounted in a small angular range between two stops, in particular flap-like magnet armatures

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