FR72935E - Systems for recording, retrieving and modifying information in telecommunications systems - Google Patents

Systems for recording, retrieving and modifying information in telecommunications systems

Info

Publication number
FR72935E
FR72935E FR749379A FR749379A FR72935E FR 72935 E FR72935 E FR 72935E FR 749379 A FR749379 A FR 749379A FR 749379 A FR749379 A FR 749379A FR 72935 E FR72935 E FR 72935E
Authority
FR
France
Prior art keywords
systems
retrieving
recording
modifying information
telecommunications
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
FR749379A
Other languages
French (fr)
Inventor
Leslie Baines Haigh
Raymond Cecil Prince Hinton
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from GB1448053A external-priority patent/GB763828A/en
Priority claimed from DEST11765A external-priority patent/DE1041098B/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority to FR749379A priority Critical patent/FR72935E/en
Application granted granted Critical
Publication of FR72935E publication Critical patent/FR72935E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/16—Manual exchanges with means for reducing interference; with means for reducing effects due to line faults

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR749379A 1953-05-22 1957-10-14 Systems for recording, retrieving and modifying information in telecommunications systems Expired FR72935E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR749379A FR72935E (en) 1953-05-22 1957-10-14 Systems for recording, retrieving and modifying information in telecommunications systems

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB1448053A GB763828A (en) 1953-05-22 1953-05-22 Improvements in or relating to subscriber billing in automatic telecommunication exchange systems and the like
DEST11765A DE1041098B (en) 1953-05-22 1956-10-05 Arrangement for monitoring the condition of lines in telecommunications, preferably telephone systems
US61608156A 1956-10-15 1956-10-15
US61602556A 1956-10-15 1956-10-15
FR749379A FR72935E (en) 1953-05-22 1957-10-14 Systems for recording, retrieving and modifying information in telecommunications systems

Publications (1)

Publication Number Publication Date
FR72935E true FR72935E (en) 1960-09-21

Family

ID=27512231

Family Applications (1)

Application Number Title Priority Date Filing Date
FR749379A Expired FR72935E (en) 1953-05-22 1957-10-14 Systems for recording, retrieving and modifying information in telecommunications systems

Country Status (1)

Country Link
FR (1) FR72935E (en)

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