FR626952A - Improvements to ringtone installations - Google Patents

Improvements to ringtone installations

Info

Publication number
FR626952A
FR626952A FR626952DA FR626952A FR 626952 A FR626952 A FR 626952A FR 626952D A FR626952D A FR 626952DA FR 626952 A FR626952 A FR 626952A
Authority
FR
France
Prior art keywords
ringtone
installations
ringtone installations
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
Louis-Joseph-Emmanue Colardeau
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 filed Critical
Application granted granted Critical
Publication of FR626952A publication Critical patent/FR626952A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR626952D 1926-04-02 1926-04-02 Improvements to ringtone installations Expired FR626952A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR626952T 1926-04-02

Publications (1)

Publication Number Publication Date
FR626952A true FR626952A (en) 1927-09-23

Family

ID=8988704

Family Applications (1)

Application Number Title Priority Date Filing Date
FR626952D Expired FR626952A (en) 1926-04-02 1926-04-02 Improvements to ringtone installations

Country Status (1)

Country Link
FR (1) FR626952A (en)

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