FR949691A - Enregistreur de numéros pour téléphonie automatique - Google Patents

Enregistreur de numéros pour téléphonie automatique

Info

Publication number
FR949691A
FR949691A FR949691DA FR949691A FR 949691 A FR949691 A FR 949691A FR 949691D A FR949691D A FR 949691DA FR 949691 A FR949691 A FR 949691A
Authority
FR
France
Prior art keywords
number recorder
automatic telephony
telephony
automatic
recorder
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)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of FR949691A publication Critical patent/FR949691A/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
    • H04M15/04—Recording calls, or communications in printed, perforated or other permanent form
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/40—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using contact-making devices, e.g. electromagnetic relay
    • G06F7/42—Adding; Subtracting

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Computational Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Relay Circuits (AREA)
  • Meter Arrangements (AREA)
FR949691D 1940-08-07 1947-06-21 Enregistreur de numéros pour téléphonie automatique Expired FR949691A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US351661A US2386763A (en) 1940-08-07 1940-08-07 Record controlled system

Publications (1)

Publication Number Publication Date
FR949691A true FR949691A (fr) 1949-09-06

Family

ID=23381808

Family Applications (1)

Application Number Title Priority Date Filing Date
FR949691D Expired FR949691A (fr) 1940-08-07 1947-06-21 Enregistreur de numéros pour téléphonie automatique

Country Status (4)

Country Link
US (1) US2386763A (fr)
CH (1) CH266240A (fr)
FR (1) FR949691A (fr)
GB (1) GB638711A (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE469839A (fr) * 1941-04-24
US2420167A (en) * 1943-03-31 1947-05-06 Ibm Relay type cross-totalizing device for record card data
NL70885C (fr) * 1944-03-15
US2513112A (en) * 1944-07-19 1950-06-27 Shepherd Judson O'd Data recording system employing record controlled apparatus
US2434499A (en) * 1944-11-10 1948-01-13 Ibm Relay computing mechanism
BE477718A (fr) * 1945-09-29
US2692728A (en) * 1946-12-17 1954-10-26 Bell Telephone Labor Inc Testing system
FR960375A (fr) * 1947-01-29 1950-04-18
US2679975A (en) * 1947-05-14 1954-06-01 Onera (Off Nat Aerospatiale) Automatic binary calculating machine for matricial calculation
US2639092A (en) * 1947-09-04 1953-05-19 Bell Telephone Labor Inc Automatic message accounting system
FR1066802A (fr) * 1948-01-16 1954-06-10
US2581184A (en) * 1948-09-23 1952-01-01 Bell Telephone Labor Inc Reperforating apparatus
US2635807A (en) * 1949-06-24 1953-04-21 Bell Telephone Labor Inc Automatic accounting device
US2619178A (en) * 1949-06-24 1952-11-25 Bell Telephone Labor Inc Precautionary circuit
US2719670A (en) * 1949-10-18 1955-10-04 Jacobs Electrical and electronic digital computers
US2590625A (en) * 1950-05-16 1952-03-25 Bell Telephone Labor Inc Sorting device
IT491246A (fr) * 1951-11-14
GB727509A (en) * 1952-10-28 1955-04-06 British Tabulating Mach Co Ltd Improvements in or relating to relay adding or subtracting circuits
DE1073773B (de) * 1953-07-31 1960-01-21 El-Re-Ma Societä anonima per Io sfruttamento di brevetti, Lugano (Schweiz) Relaisrechcnschaltung zur Vornahme der Addition zweier verschlüsselter Dezimalziffern
US3038657A (en) * 1957-01-02 1962-06-12 Ibm Electrical switching apparatus

Also Published As

Publication number Publication date
GB638711A (en) 1950-06-14
CH266240A (fr) 1950-01-15
US2386763A (en) 1945-10-16

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