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FR452816A - Téléphone automatique à prépaiement - Google Patents

Téléphone automatique à prépaiement

Info

Publication number
FR452816A
FR452816A FR452816A FR452816DA FR452816A FR 452816 A FR452816 A FR 452816A FR 452816 A FR452816 A FR 452816A FR 452816D A FR452816D A FR 452816DA FR 452816 A FR452816 A FR 452816A
Authority
FR
France
Prior art keywords
automatic telephone
prepaid
prepaid automatic
telephone
automatic
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
FR452816A
Other languages
English (en)
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.)
FRERES BREGUET ET CIE
Original Assignee
FRERES BREGUET ET CIE
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 FRERES BREGUET ET CIE filed Critical FRERES BREGUET ET CIE
Application granted granted Critical
Publication of FR452816A publication Critical patent/FR452816A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2021—Storage heaters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
FR452816A 1912-01-02 1913-01-02 Téléphone automatique à prépaiement Expired FR452816A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE452816X 1912-01-02

Publications (1)

Publication Number Publication Date
FR452816A true FR452816A (fr) 1913-05-23

Family

ID=6538706

Family Applications (1)

Application Number Title Priority Date Filing Date
FR452816A Expired FR452816A (fr) 1912-01-02 1913-01-02 Téléphone automatique à prépaiement

Country Status (2)

Country Link
FR (1) FR452816A (fr)
GB (1) GB452816A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990930A (en) * 1956-11-05 1961-07-04 Nat Rejectors Gmbh Timing devices for coin switches

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917287A (en) * 1957-10-28 1959-12-15 Electro Temp Corp Heating and/or cooling system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990930A (en) * 1956-11-05 1961-07-04 Nat Rejectors Gmbh Timing devices for coin switches

Also Published As

Publication number Publication date
GB452816A (en) 1936-08-31

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