FR577423A - Improvements to phones - Google Patents

Improvements to phones

Info

Publication number
FR577423A
FR577423A FR577423DA FR577423A FR 577423 A FR577423 A FR 577423A FR 577423D A FR577423D A FR 577423DA FR 577423 A FR577423 A FR 577423A
Authority
FR
France
Prior art keywords
phones
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
Frank Torrens Maley
Edward Arthur Doddy
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 FR577423A publication Critical patent/FR577423A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/10—Metering calls from calling party, i.e. A-party charged for the communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
FR577423D 1924-02-19 1924-02-19 Improvements to phones Expired FR577423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR577423T 1924-02-19

Publications (1)

Publication Number Publication Date
FR577423A true FR577423A (en) 1924-09-05

Family

ID=8954730

Family Applications (1)

Application Number Title Priority Date Filing Date
FR577423D Expired FR577423A (en) 1924-02-19 1924-02-19 Improvements to phones

Country Status (1)

Country Link
FR (1) FR577423A (en)

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