NL9296C - - Google Patents
Info
- Publication number
- NL9296C NL9296C NL15831A NL15831A NL9296C NL 9296 C NL9296 C NL 9296C NL 15831 A NL15831 A NL 15831A NL 15831 A NL15831 A NL 15831A NL 9296 C NL9296 C NL 9296C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/738—Interface circuits for coupling substations to external telephone lines
- H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Telephone Set Structure (AREA)
- Devices For Supply Of Signal Current (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES46449D DE363173C (de) | 1917-03-21 | 1917-03-21 | Einrichtung zur Vermeidung des Knackens im Telephon beim Einschalten verschiedener, mit dem Telephon transformatorisch verbundener Geber |
| DES46492D DE365295C (de) | 1917-03-21 | 1917-03-31 | Einrichtung zur Vermeidung des Knackens im Telephon beim Einschalten verschiedener, mit dem Telephon transformatorisch verbundener Geber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL9296C true NL9296C (xx) | 1923-08-15 |
Family
ID=25752307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL15831A NL9296C (xx) | 1917-03-21 | 1920-07-28 |
Country Status (4)
| Country | Link |
|---|---|
| DE (2) | DE363173C (xx) |
| FR (1) | FR526539A (xx) |
| GB (2) | GB147948A (xx) |
| NL (1) | NL9296C (xx) |
-
1917
- 1917-03-21 DE DES46449D patent/DE363173C/de not_active Expired
- 1917-03-31 DE DES46492D patent/DE365295C/de not_active Expired
-
1920
- 1920-07-07 FR FR526539A patent/FR526539A/fr not_active Expired
- 1920-07-09 GB GB2000320A patent/GB147948A/en not_active Expired
- 1920-07-10 GB GB2036520A patent/GB148418A/en not_active Expired
- 1920-07-28 NL NL15831A patent/NL9296C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| GB148418A (en) | 1921-09-22 |
| DE365295C (de) | 1922-12-14 |
| GB147948A (en) | 1921-09-22 |
| DE363173C (de) | 1922-11-04 |
| FR526539A (fr) | 1921-10-10 |