FR508246A - Voyant pour batteries centrales de téléphone - Google Patents

Voyant pour batteries centrales de téléphone

Info

Publication number
FR508246A
FR508246A FR508246A FR508246DA FR508246A FR 508246 A FR508246 A FR 508246A FR 508246 A FR508246 A FR 508246A FR 508246D A FR508246D A FR 508246DA FR 508246 A FR508246 A FR 508246A
Authority
FR
France
Prior art keywords
indicator
central telephone
telephone batteries
batteries
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
FR508246A
Other languages
English (en)
Inventor
Fridel Mostovoy
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.)
FRIDEL MOSTOVOY
Original Assignee
FRIDEL MOSTOVOY
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 FRIDEL MOSTOVOY filed Critical FRIDEL MOSTOVOY
Application granted granted Critical
Publication of FR508246A publication Critical patent/FR508246A/fr
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
    • G08B5/30—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 rotating or oscillating members, e.g. vanes

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR508246A 1920-01-09 1920-01-09 Voyant pour batteries centrales de téléphone Expired FR508246A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR508246T 1920-01-09

Publications (1)

Publication Number Publication Date
FR508246A true FR508246A (fr) 1920-10-05

Family

ID=8910261

Family Applications (1)

Application Number Title Priority Date Filing Date
FR508246A Expired FR508246A (fr) 1920-01-09 1920-01-09 Voyant pour batteries centrales de téléphone

Country Status (1)

Country Link
FR (1) FR508246A (fr)

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