FR22720E - Compteur téléphonique de conservation - Google Patents

Compteur téléphonique de conservation

Info

Publication number
FR22720E
FR22720E FR22720A FR22720DA FR22720E FR 22720 E FR22720 E FR 22720E FR 22720 A FR22720 A FR 22720A FR 22720D A FR22720D A FR 22720DA FR 22720 E FR22720 E FR 22720E
Authority
FR
France
Prior art keywords
conservation
telephone counter
telephone
counter
conservation telephone
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
FR22720A
Other languages
English (en)
Inventor
Robert Ferry
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR22720E publication Critical patent/FR22720E/fr
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)
FR22720A 1923-04-27 1920-01-31 Compteur téléphonique de conservation Expired FR22720E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR28095T 1923-04-27

Publications (1)

Publication Number Publication Date
FR22720E true FR22720E (fr) 1921-08-10

Family

ID=8666318

Family Applications (5)

Application Number Title Priority Date Filing Date
FR513880A Expired FR513880A (fr) 1923-04-27 1920-01-20 Compteur téléphonique de conversation
FR22720A Expired FR22720E (fr) 1923-04-27 1920-01-31 Compteur téléphonique de conservation
FR24119A Expired FR24119E (fr) 1923-04-27 1920-11-19 Compteur téléphonique de conversation
FR26042D Expired FR26042E (fr) 1923-04-27 1922-02-25 Compteur téléphonique de conversation
FR28095D Expired FR28095E (fr) 1923-04-27 1923-04-27 Compteur téléphonique de conversation

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR513880A Expired FR513880A (fr) 1923-04-27 1920-01-20 Compteur téléphonique de conversation

Family Applications After (3)

Application Number Title Priority Date Filing Date
FR24119A Expired FR24119E (fr) 1923-04-27 1920-11-19 Compteur téléphonique de conversation
FR26042D Expired FR26042E (fr) 1923-04-27 1922-02-25 Compteur téléphonique de conversation
FR28095D Expired FR28095E (fr) 1923-04-27 1923-04-27 Compteur téléphonique de conversation

Country Status (1)

Country Link
FR (5) FR513880A (fr)

Also Published As

Publication number Publication date
FR24119E (fr) 1922-02-24
FR28095E (fr) 1925-01-14
FR26042E (fr) 1923-07-18
FR513880A (fr) 1921-02-25

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