GB191327137A - Improved Apparatus for Recording Number of Telephone Calls. - Google Patents

Improved Apparatus for Recording Number of Telephone Calls.

Info

Publication number
GB191327137A
GB191327137A GB191327137DA GB191327137A GB 191327137 A GB191327137 A GB 191327137A GB 191327137D A GB191327137D A GB 191327137DA GB 191327137 A GB191327137 A GB 191327137A
Authority
GB
United Kingdom
Prior art keywords
key
call
spring
fitzgerald
springs
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
English (en)
Inventor
Anne Josephine Fitzgerald
Edward Gerald Fitzgerald
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 GB191327137A publication Critical patent/GB191327137A/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
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
    • H04M15/30—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal the meter or calculation of charges not being controlled from an exchange

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
GB191327137D 1913-11-25 1913-11-25 Improved Apparatus for Recording Number of Telephone Calls. Expired GB191327137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191327137T 1913-11-25

Publications (1)

Publication Number Publication Date
GB191327137A true GB191327137A (en) 1914-06-04

Family

ID=32646794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191327137D Expired GB191327137A (en) 1913-11-25 1913-11-25 Improved Apparatus for Recording Number of Telephone Calls.

Country Status (2)

Country Link
DE (1) DE321942C (cg-RX-API-DMAC7.html)
GB (1) GB191327137A (cg-RX-API-DMAC7.html)

Also Published As

Publication number Publication date
DE321942C (cg-RX-API-DMAC7.html) 1920-06-15

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