SE310375B - - Google Patents

Info

Publication number
SE310375B
SE310375B SE237362A SE237362A SE310375B SE 310375 B SE310375 B SE 310375B SE 237362 A SE237362 A SE 237362A SE 237362 A SE237362 A SE 237362A SE 310375 B SE310375 B SE 310375B
Authority
SE
Sweden
Prior art keywords
relays
relay
line
busy tone
march
Prior art date
Application number
SE237362A
Other languages
English (en)
Inventor
Kroes J De
H Grubben
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of SE310375B publication Critical patent/SE310375B/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
SE237362A 1961-03-08 1962-03-05 SE310375B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL262148 1961-03-08

Publications (1)

Publication Number Publication Date
SE310375B true SE310375B (xx) 1969-04-28

Family

ID=19752918

Family Applications (1)

Application Number Title Priority Date Filing Date
SE237362A SE310375B (xx) 1961-03-08 1962-03-05

Country Status (5)

Country Link
CH (1) CH391007A (xx)
DE (1) DE1178472B (xx)
GB (1) GB937086A (xx)
NL (1) NL262148A (xx)
SE (1) SE310375B (xx)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE763193C (xx) *
BE506244A (xx) * 1950-10-06

Also Published As

Publication number Publication date
NL262148A (xx)
GB937086A (en) 1963-09-18
DE1178472B (de) 1964-09-24
CH391007A (de) 1965-04-30

Similar Documents

Publication Publication Date Title
GB1013594A (en) Improvements in communication switching systems
GB982825A (en) Class of service telephone system
SE327219B (xx)
GB917017A (en) Improvements relating to automatic telecommunication switching systems
SE310375B (xx)
GB1029385A (en) Circuit arrangement to control cross-point arrangements in telephone systems
US2410304A (en) Automatic telephone system
US3193621A (en) Telephone line finder
GB725733A (en) Improvements in or relating to circuits for use in automatic telephone systems
GB1265084A (xx)
GB990545A (en) Telephone concentrator systems
GB1130431A (en) Communication switching systems
GB1369669A (en) Line circuits for communication systems
US2707211A (en) Adapter circuit
GB1032966A (en) Private automatic branch exchanges
GB1139740A (en) Improvements in or relating to automatic telephone exchanges
SE326470B (xx)
US2199431A (en) Telephone signaling system
GB707038A (en) Improvements in or relating to marking circuit-arrangement for positioning a final selector switch
US2719882A (en) Automatic telephone systems
ES283082A1 (es) Mejoras en sistemas conmutadores telefónicos automáticos
US2017888A (en) Telephone system
GB1172850A (en) Automatic Transfer of Calls
GB1095574A (xx)
GB1162047A (en) Automatic Telephone System