CH332350A - Dial for automatic telephony - Google Patents

Dial for automatic telephony

Info

Publication number
CH332350A
CH332350A CH332350DA CH332350A CH 332350 A CH332350 A CH 332350A CH 332350D A CH332350D A CH 332350DA CH 332350 A CH332350 A CH 332350A
Authority
CH
Switzerland
Prior art keywords
dial
automatic telephony
telephony
automatic
Prior art date
Application number
Other languages
German (de)
Inventor
Valdemar Alexandersson Harald
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of CH332350A publication Critical patent/CH332350A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Braking Arrangements (AREA)
  • Gear Transmission (AREA)
CH332350D 1954-03-26 1955-03-10 Dial for automatic telephony CH332350A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE332350X 1954-03-26

Publications (1)

Publication Number Publication Date
CH332350A true CH332350A (en) 1958-08-31

Family

ID=20308135

Family Applications (1)

Application Number Title Priority Date Filing Date
CH332350D CH332350A (en) 1954-03-26 1955-03-10 Dial for automatic telephony

Country Status (6)

Country Link
US (1) US2767251A (en)
BE (1) BE536688A (en)
CH (1) CH332350A (en)
DE (1) DE961105C (en)
FR (1) FR1121226A (en)
GB (1) GB764759A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL208105A (en) * 1955-06-25 1900-01-01 Automatic Telephone & Elect
US3105122A (en) * 1960-05-09 1963-09-24 Bell Telephone Labor Inc Space saver dial
KR790000330Y1 (en) * 1978-06-22 1979-03-31 Ki Weon Song Telephone timer immersed in liquid
GB2264241B (en) * 1992-02-04 1995-03-22 Edward Henry Harvey Epicyclic change-speed mechanism and model clock incorporating same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1866669A (en) * 1931-08-25 1932-07-12 American Telephone & Telegraph Impulse transmitter

Also Published As

Publication number Publication date
DE961105C (en) 1957-04-04
FR1121226A (en) 1956-07-25
BE536688A (en)
GB764759A (en) 1957-01-02
US2767251A (en) 1956-10-16

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