SE386345B - HELP TELEPHONE SYSTEM. - Google Patents
HELP TELEPHONE SYSTEM.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
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7402809A SE386345B (en) | 1974-03-04 | 1974-03-04 | HELP TELEPHONE SYSTEM. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7402809A SE386345B (en) | 1974-03-04 | 1974-03-04 | HELP TELEPHONE SYSTEM. |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7402809L SE7402809L (en) | 1975-09-05 |
SE386345B true SE386345B (en) | 1976-08-02 |
Family
ID=20320394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7402809A SE386345B (en) | 1974-03-04 | 1974-03-04 | HELP TELEPHONE SYSTEM. |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE386345B (en) |
-
1974
- 1974-03-04 SE SE7402809A patent/SE386345B/en unknown
Also Published As
Publication number | Publication date |
---|---|
SE7402809L (en) | 1975-09-05 |
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