NO119747B - - Google Patents

Download PDF

Info

Publication number
NO119747B
NO119747B NO16957567A NO16957567A NO119747B NO 119747 B NO119747 B NO 119747B NO 16957567 A NO16957567 A NO 16957567A NO 16957567 A NO16957567 A NO 16957567A NO 119747 B NO119747 B NO 119747B
Authority
NO
Norway
Prior art keywords
relay
connection
relays
switchboard
closing contact
Prior art date
Application number
NO16957567A
Other languages
English (en)
Norwegian (no)
Inventor
E Olsson
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 NO119747B publication Critical patent/NO119747B/no

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M3/00Automatic or semi-automatic exchanges
    • H04M3/42Systems providing special services or facilities to subscribers
    • H04M3/58Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
NO16957567A 1966-09-06 1967-09-01 NO119747B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1195966A SE313846B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-09-06 1966-09-06

Publications (1)

Publication Number Publication Date
NO119747B true NO119747B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-06-29

Family

ID=20294901

Family Applications (1)

Application Number Title Priority Date Filing Date
NO16957567A NO119747B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-09-06 1967-09-01

Country Status (4)

Country Link
DE (1) DE1537894A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1198103A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO119747B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE313846B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Also Published As

Publication number Publication date
GB1198103A (en) 1970-07-08
DE1537894A1 (de) 1969-10-30
SE313846B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1969-08-25

Similar Documents

Publication Publication Date Title
NO129429B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO119747B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US2055647A (en) Telephone line system
US1459186A (en) Telephone-exchange system
US1563738A (en) Registering device
US2278752A (en) Busy signal for automatic telephone systems
US1904252A (en) Telephone system
US1504258A (en) Telephone-exchange system
US2347505A (en) Phantom magneto telephone system
US1747219A (en) Telephone system
US2025444A (en) Telephone system
US1542649A (en) Multioffice telephone system
US1491867A (en) Electrical switching device
US1312702A (en) martin
US1678103A (en) Telephone system
US1652645A (en) Substation circuit
USRE16514E (en) Assig-nobs
DE706647C (de) Schaltungsanordnung fuer Fernsprechnebenstellenanlagen
US1743429A (en) Telephone-exchange system
US1251604A (en) Ringing control system for telephone-exchanges.
US2024280A (en) Means to reduce the effect of interfering currents on telephone circuits
US1381530A (en) Telephone-exchange system
US1174262A (en) Telephone system.
US1647373A (en) Selective-switch-controlling system
US1541408A (en) Telephone-exchange system