BE477685A - - Google Patents

Info

Publication number
BE477685A
BE477685A BE477685DA BE477685A BE 477685 A BE477685 A BE 477685A BE 477685D A BE477685D A BE 477685DA BE 477685 A BE477685 A BE 477685A
Authority
BE
Belgium
Application number
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.)
Publication of BE477685A publication Critical patent/BE477685A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/30—Igniting arrangements
    • 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
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
BE477685D 1940-09-20 BE477685A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US357518A US2267950A (en) 1940-09-20 1940-09-20 Telephone system
US388221A US2319424A (en) 1940-09-20 1941-04-12 Telephone system

Publications (1)

Publication Number Publication Date
BE477685A true BE477685A (fr)

Family

ID=26999687

Family Applications (1)

Application Number Title Priority Date Filing Date
BE477685D BE477685A (fr) 1940-09-20

Country Status (5)

Country Link
US (3) US2267950A (fr)
BE (1) BE477685A (fr)
CH (1) CH273261A (fr)
GB (2) GB548932A (fr)
NL (1) NL74027C (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL57799C (nl) * 1941-03-07 1945-09-15 Bell Telephone Mfg Schakeling voor het besturen van een apparatuur in seinstelsels, in het bijzonder van de instelling van schakelaars in centrales voor telefoonstelsels
NL58889C (fr) * 1941-04-25
US2490038A (en) * 1941-06-26 1949-12-06 Int Standard Electric Corp Electrical signaling system
NL59752C (fr) * 1941-08-21
US2586704A (en) * 1942-08-06 1952-02-19 Automatic Elect Lab Message data recording telephone system
US2698880A (en) * 1943-05-05 1955-01-04 American Telephone & Telegraph Calling line identifier
BE473095A (fr) * 1946-05-17
US2532750A (en) * 1946-08-03 1950-12-05 Automatic Telephone & Elect Calling line identifier having display device at operator's position
US2532926A (en) * 1947-02-14 1950-12-05 Automatic Elect Lab Party line metering, including selection of the meter prior to signaling the operator
NL79795C (fr) * 1947-08-22
US2594923A (en) * 1948-06-16 1952-04-29 Bell Telephone Labor Inc Call data recording telephone system
US2633498A (en) * 1948-12-29 1953-03-31 Bell Telephone Labor Inc Selecting and two-way translating system
US2639330A (en) * 1949-03-04 1953-05-19 Automatic Elect Lab Calling line identification apparatus
NL78690C (fr) * 1949-04-26
US2594505A (en) * 1949-12-09 1952-04-29 Bell Telephone Labor Inc Calling line identification and registering system
BE500226A (fr) * 1949-12-24
US2607891A (en) * 1950-06-10 1952-08-19 Bell Telephone Labor Inc Translating circuits utilizing glow discharge devices

Also Published As

Publication number Publication date
USRE23388E (en) 1951-07-10
GB554091A (en) 1943-06-18
NL74027C (fr)
US2319424A (en) 1943-05-18
CH273261A (de) 1951-01-31
GB548932A (en) 1942-10-29
US2267950A (en) 1941-12-30

Similar Documents

Publication Publication Date Title
AT166693B (fr)
BE440256A (fr)
FR853881A (fr)
SE113658C1 (fr)
BE438794A (fr)
BE437891A (fr)
BE438393A (fr)
NL74027C (fr)
BE437554A (fr)
BE440185A (fr)
BE437800A (fr)
BE440192A (fr)
BE436800A (fr)
BE437808A (fr)
BE448277A (fr)
BE432598A (fr)
BE437917A (fr)
BE438183A (fr)
BE438217A (fr)
BE438273A (fr)
BE438314A (fr)
BE440246A (fr)
BE440248A (fr)
BE438353A (fr)
BE439618A (fr)