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FR564253A - Automatic wireless telephony hearing device - Google Patents

Automatic wireless telephony hearing device

Info

Publication number
FR564253A
FR564253A FR564253DA FR564253A FR 564253 A FR564253 A FR 564253A FR 564253D A FR564253D A FR 564253DA FR 564253 A FR564253 A FR 564253A
Authority
FR
France
Prior art keywords
hearing device
wireless telephony
automatic wireless
automatic
telephony
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
Arthur Boitelle
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 FR564253A publication Critical patent/FR564253A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/28—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for radio apparatus

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR564253D 1923-03-23 1923-03-23 Automatic wireless telephony hearing device Expired FR564253A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR564253T 1923-03-23

Publications (1)

Publication Number Publication Date
FR564253A true FR564253A (en) 1923-12-26

Family

ID=8945621

Family Applications (1)

Application Number Title Priority Date Filing Date
FR564253D Expired FR564253A (en) 1923-03-23 1923-03-23 Automatic wireless telephony hearing device

Country Status (1)

Country Link
FR (1) FR564253A (en)

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