IT997616B - IMPROVEMENT IN DEVICES FOR THE TRANSMISSION AND PRESENTATION OF INFORMATION BY TELEPHONE - Google Patents

IMPROVEMENT IN DEVICES FOR THE TRANSMISSION AND PRESENTATION OF INFORMATION BY TELEPHONE

Info

Publication number
IT997616B
IT997616B IT5385373A IT5385373A IT997616B IT 997616 B IT997616 B IT 997616B IT 5385373 A IT5385373 A IT 5385373A IT 5385373 A IT5385373 A IT 5385373A IT 997616 B IT997616 B IT 997616B
Authority
IT
Italy
Prior art keywords
presentation
telephone
improvement
transmission
devices
Prior art date
Application number
IT5385373A
Other languages
Italian (it)
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Application granted granted Critical
Publication of IT997616B publication Critical patent/IT997616B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Telephone Set Structure (AREA)
IT5385373A 1972-12-07 1973-11-22 IMPROVEMENT IN DEVICES FOR THE TRANSMISSION AND PRESENTATION OF INFORMATION BY TELEPHONE IT997616B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31302672A 1972-12-07 1972-12-07

Publications (1)

Publication Number Publication Date
IT997616B true IT997616B (en) 1975-12-30

Family

ID=23214059

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5385373A IT997616B (en) 1972-12-07 1973-11-22 IMPROVEMENT IN DEVICES FOR THE TRANSMISSION AND PRESENTATION OF INFORMATION BY TELEPHONE

Country Status (13)

Country Link
JP (1) JPS4990005A (en)
BE (1) BE808315A (en)
BR (1) BR7309536D0 (en)
CA (1) CA999388A (en)
CH (1) CH594329A5 (en)
DD (1) DD113645A5 (en)
DE (1) DE2360171A1 (en)
ES (1) ES421280A1 (en)
FR (1) FR2210062B1 (en)
GB (1) GB1437509A (en)
IT (1) IT997616B (en)
NL (1) NL7316201A (en)
SE (1) SE397913B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991282A (en) * 1974-12-27 1976-11-09 Feil Thomas E Multi station telephone switching system
DE3713104A1 (en) * 1987-04-16 1988-02-04 Josef Pollmann Circuit arrangement for reducing anonymous calls in telephone traffic
DE3920721A1 (en) * 1989-06-24 1991-01-03 Standard Elektrik Lorenz Ag Telephone terminal operation with data indication - involves initialising by transmission of specific dial signal to exchange

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2032967B2 (en) * 1970-07-03 1971-05-06 Robert Bosch Elektronik Gmbh, 1000 Berlin Und 7000 Stuttgart RADIO NUMBER TRANSMITTER FOR RADIO DEVICES
CA958476A (en) * 1971-01-12 1974-11-26 Donald J. Berets Electrochromic information displays

Also Published As

Publication number Publication date
DD113645A5 (en) 1975-06-12
SE397913B (en) 1977-11-21
GB1437509A (en) 1976-05-26
FR2210062A1 (en) 1974-07-05
DE2360171A1 (en) 1974-07-11
CA999388A (en) 1976-11-02
BR7309536D0 (en) 1974-08-22
JPS4990005A (en) 1974-08-28
CH594329A5 (en) 1978-01-13
BE808315A (en) 1974-06-06
FR2210062B1 (en) 1977-09-30
ES421280A1 (en) 1976-06-16
NL7316201A (en) 1974-06-11

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