SE7704664L - Slingforlengare - Google Patents
SlingforlengareInfo
- Publication number
- SE7704664L SE7704664L SE7704664A SE7704664A SE7704664L SE 7704664 L SE7704664 L SE 7704664L SE 7704664 A SE7704664 A SE 7704664A SE 7704664 A SE7704664 A SE 7704664A SE 7704664 L SE7704664 L SE 7704664L
- Authority
- SE
- Sweden
- Prior art keywords
- sling extension
- sling
- extension
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/001—Current supply source at the exchanger providing current to substations
- H04M19/006—Circuits for increasing the range of current supply source
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68123276A | 1976-04-28 | 1976-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE7704664L true SE7704664L (sv) | 1977-10-29 |
Family
ID=24734372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7704664A SE7704664L (sv) | 1976-04-28 | 1977-04-22 | Slingforlengare |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4122312A (fr) |
| JP (1) | JPS52132607A (fr) |
| CA (1) | CA1069232A (fr) |
| DE (1) | DE2718990A1 (fr) |
| FR (1) | FR2350019A1 (fr) |
| GB (1) | GB1571252A (fr) |
| SE (1) | SE7704664L (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4158752A (en) * | 1977-12-21 | 1979-06-19 | Gte Automatic Electric Laboratories Incorporated | Carrier subscriber telephone station terminal loop current booster |
| WO1994013004A1 (fr) * | 1992-12-02 | 1994-06-09 | Emc Corporation | Limiteur d'appel de courant |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3514543A (en) * | 1968-03-29 | 1970-05-26 | Hubbell Inc Harvey | Battery insertion apparatus for extending loop telephone lines |
| US3626201A (en) * | 1970-06-05 | 1971-12-07 | Lorain Prod Corp | Polarity responsive circuit for telephone systems |
| US3781480A (en) * | 1970-11-10 | 1973-12-25 | Wescom | Loop extender |
| US3763319A (en) * | 1971-02-22 | 1973-10-02 | Lorain Prod Corp | Impedance responsive voltage booster circuit for telephone systems |
| US3757052A (en) * | 1971-10-19 | 1973-09-04 | Electro Dynamics & Telecom Ltd | Telephone line extender with test thru capability |
| US3821483A (en) * | 1972-10-17 | 1974-06-28 | Reliable Electric Co | Telephone line loop extender |
| US3898389A (en) * | 1972-10-18 | 1975-08-05 | Communic Mfg | Voltage and/or current-sensitive loop extender |
| US3872258A (en) * | 1974-01-28 | 1975-03-18 | Lorain Prod Corp | Voltage booster circuit for telephone systems |
| US3906162A (en) * | 1974-07-30 | 1975-09-16 | Communic Mfg | Loop extender with bypass capacitor discharge |
| US3992591A (en) * | 1975-04-25 | 1976-11-16 | Bell Telephone Laboratories, Incorporated | Telephone line battery boost circuit |
| US4024351A (en) * | 1976-01-26 | 1977-05-17 | Bell Telephone Laboratories, Incorporated | Telephone line battery boost circuit |
-
1977
- 1977-04-19 CA CA276,503A patent/CA1069232A/fr not_active Expired
- 1977-04-22 SE SE7704664A patent/SE7704664L/xx unknown
- 1977-04-27 GB GB17614/77A patent/GB1571252A/en not_active Expired
- 1977-04-28 FR FR7712917A patent/FR2350019A1/fr active Pending
- 1977-04-28 JP JP4976277A patent/JPS52132607A/ja active Pending
- 1977-04-28 DE DE19772718990 patent/DE2718990A1/de not_active Withdrawn
-
1978
- 1978-01-31 US US05/873,849 patent/US4122312A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1571252A (en) | 1980-07-09 |
| CA1069232A (fr) | 1980-01-01 |
| US4122312A (en) | 1978-10-24 |
| DE2718990A1 (de) | 1977-11-17 |
| FR2350019A1 (fr) | 1977-11-25 |
| JPS52132607A (en) | 1977-11-07 |
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