NL17573C - - Google Patents
Info
- Publication number
- NL17573C NL17573C NL17573DA NL17573C NL 17573 C NL17573 C NL 17573C NL 17573D A NL17573D A NL 17573DA NL 17573 C NL17573 C NL 17573C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
- Amplifiers (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2180223A GB225603A (en) | 1923-08-29 | 1923-08-29 | A means of reducing echo effects in telephone lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL17573C true NL17573C (fr) |
Family
ID=10169049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL17573D NL17573C (fr) | 1923-08-29 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE463846C (fr) |
| FR (1) | FR582502A (fr) |
| GB (1) | GB225603A (fr) |
| NL (1) | NL17573C (fr) |
-
0
- NL NL17573D patent/NL17573C/xx active
-
1923
- 1923-08-29 GB GB2180223A patent/GB225603A/en not_active Expired
-
1924
- 1924-04-28 FR FR582502D patent/FR582502A/fr not_active Expired
- 1924-06-07 DE DEG61581D patent/DE463846C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR582502A (fr) | 1924-12-20 |
| GB225603A (en) | 1924-12-01 |
| DE463846C (de) | 1928-08-22 |