ES421280A1 - Perfeccionamientos en sistemas para presentar informacion alfanumerica en telefonos. - Google Patents

Perfeccionamientos en sistemas para presentar informacion alfanumerica en telefonos.

Info

Publication number
ES421280A1
ES421280A1 ES421280A ES421280A ES421280A1 ES 421280 A1 ES421280 A1 ES 421280A1 ES 421280 A ES421280 A ES 421280A ES 421280 A ES421280 A ES 421280A ES 421280 A1 ES421280 A1 ES 421280A1
Authority
ES
Spain
Prior art keywords
telephone
information display
electrochromic
electrochromic information
alphanumeric
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
ES421280A
Other languages
English (en)
Spanish (es)
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.)
Wyeth Holdings LLC
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
Publication of ES421280A1 publication Critical patent/ES421280A1/es
Expired legal-status Critical Current

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)
ES421280A 1972-12-07 1973-12-07 Perfeccionamientos en sistemas para presentar informacion alfanumerica en telefonos. Expired ES421280A1 (es)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES421280A1 true ES421280A1 (es) 1976-06-16

Family

ID=23214059

Family Applications (1)

Application Number Title Priority Date Filing Date
ES421280A Expired ES421280A1 (es) 1972-12-07 1973-12-07 Perfeccionamientos en sistemas para presentar informacion alfanumerica en telefonos.

Country Status (13)

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

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 (de) * 1987-04-16 1988-02-04 Josef Pollmann Schaltungsanordnung zur verminderung anonymer anrufe im fernsprechverkehr
DE3920721A1 (de) * 1989-06-24 1991-01-03 Standard Elektrik Lorenz Ag Sprechanlage mit sprechstelle mit datenanzeige

Family Cites Families (2)

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

Also Published As

Publication number Publication date
GB1437509A (en) 1976-05-26
BR7309536D0 (pt) 1974-08-22
IT997616B (it) 1975-12-30
DD113645A5 (tr) 1975-06-12
SE397913B (sv) 1977-11-21
JPS4990005A (tr) 1974-08-28
FR2210062B1 (tr) 1977-09-30
NL7316201A (tr) 1974-06-11
DE2360171A1 (de) 1974-07-11
CH594329A5 (tr) 1978-01-13
CA999388A (en) 1976-11-02
BE808315A (fr) 1974-06-06
FR2210062A1 (tr) 1974-07-05

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