IT1009628B - Disposizione per la compartecipa zione ad una scneria telefonica - Google Patents

Disposizione per la compartecipa zione ad una scneria telefonica

Info

Publication number
IT1009628B
IT1009628B IT7420274A IT2027474A IT1009628B IT 1009628 B IT1009628 B IT 1009628B IT 7420274 A IT7420274 A IT 7420274A IT 2027474 A IT2027474 A IT 2027474A IT 1009628 B IT1009628 B IT 1009628B
Authority
IT
Italy
Prior art keywords
scneria
sharing
telephone
arrangement
telephone scneria
Prior art date
Application number
IT7420274A
Other languages
English (en)
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of IT1009628B publication Critical patent/IT1009628B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
    • H04M3/64—Arrangements for signalling the number or class of the calling line to the operator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Telephone Function (AREA)
IT7420274A 1973-02-14 1974-02-08 Disposizione per la compartecipa zione ad una scneria telefonica IT1009628B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00332466A US3836728A (en) 1973-02-14 1973-02-14 Telephone ringer sharing arrangement

Publications (1)

Publication Number Publication Date
IT1009628B true IT1009628B (it) 1976-12-20

Family

ID=23298344

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7420274A IT1009628B (it) 1973-02-14 1974-02-08 Disposizione per la compartecipa zione ad una scneria telefonica

Country Status (5)

Country Link
US (1) US3836728A (it)
DE (1) DE2406127A1 (it)
ES (1) ES423183A1 (it)
GB (1) GB1419475A (it)
IT (1) IT1009628B (it)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1967404A (en) * 1931-04-22 1934-07-24 Siemens Ag Signaling apparatus
US1860007A (en) * 1931-07-07 1932-05-24 American Telephone & Telegraph Telephone office alarm circuit
US3230316A (en) * 1963-02-12 1966-01-18 Orbit Ind Inc Telephone isolation apparatus
US3730999A (en) * 1971-10-26 1973-05-01 Stromberg Carlson Corp Telephone ring-trip circuit

Also Published As

Publication number Publication date
DE2406127A1 (de) 1974-09-05
ES423183A1 (es) 1976-05-01
US3836728A (en) 1974-09-17
GB1419475A (en) 1975-12-31

Similar Documents

Publication Publication Date Title
ATA339774A (de) Zahnfullmasse
IT1010406B (it) Custodia per unita telefoniche
BR7408355D0 (pt) Maquina eletrodinamica
IT1003592B (it) Microtelefono
SE395513B (sv) Hydraulmaskin
SE403192B (sv) Digital fasjemforare
AR204934A1 (es) Disposicion de telecommunicaciones
SE389954B (sv) Telefonapparat
NL7415585A (nl) Telefoontoestel.
SE422653B (sv) Siktmaskin
IT1019772B (it) Multiplexatore per vie telefoniche
BE813395A (fr) Interconnecteur pour elements telephoniques
NL175506C (nl) Doorlopend kantoorformulier.
BR7400589D0 (pt) Maquina dinamoeletrica
AT336694B (de) Nebenstellen-fernsprechanlage
NL169809C (nl) Luidsprekend telefoontoestel.
NO142604C (no) Tannpasta.
IT1019932B (it) Apparecchio telefonico
NL7413920A (nl) Extrusiemachine.
ES205579Y (es) Una cadena.
SU540596A1 (ru) Комкодавитель клубнекорнеуборочной машины
BE812239A (fr) Machine hydraulique
AT341434B (de) Banderoliermaschine
BE817150A (nl) Decapsuleermachine
ES195487Y (es) Una linterna-proyector.