SE386345B - Hjelptelefonsystem. - Google Patents

Hjelptelefonsystem.

Info

Publication number
SE386345B
SE386345B SE7402809A SE7402809A SE386345B SE 386345 B SE386345 B SE 386345B SE 7402809 A SE7402809 A SE 7402809A SE 7402809 A SE7402809 A SE 7402809A SE 386345 B SE386345 B SE 386345B
Authority
SE
Sweden
Prior art keywords
telephone system
help telephone
help
telephone
Prior art date
Application number
SE7402809A
Other languages
English (en)
Other versions
SE7402809L (sv
Inventor
B Ericsson
T Hjelm
H Lind
L Lindblad
G-O Renstrom
U Tinglof
Original Assignee
B Ericsson
T Hjelm
H Lind
L Lindblad
Renstrom G O
U Tinglof
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 B Ericsson, T Hjelm, H Lind, L Lindblad, Renstrom G O, U Tinglof filed Critical B Ericsson
Priority to SE7402809A priority Critical patent/SE386345B/sv
Publication of SE7402809L publication Critical patent/SE7402809L/xx
Publication of SE386345B publication Critical patent/SE386345B/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42136—Administration or customisation of services
    • H04M3/42153—Administration or customisation of services by subscriber

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
SE7402809A 1974-03-04 1974-03-04 Hjelptelefonsystem. SE386345B (sv)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE7402809A SE386345B (sv) 1974-03-04 1974-03-04 Hjelptelefonsystem.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7402809A SE386345B (sv) 1974-03-04 1974-03-04 Hjelptelefonsystem.

Publications (2)

Publication Number Publication Date
SE7402809L SE7402809L (sv) 1975-09-05
SE386345B true SE386345B (sv) 1976-08-02

Family

ID=20320394

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7402809A SE386345B (sv) 1974-03-04 1974-03-04 Hjelptelefonsystem.

Country Status (1)

Country Link
SE (1) SE386345B (sv)

Also Published As

Publication number Publication date
SE7402809L (sv) 1975-09-05

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