BE511553A - - Google Patents
Info
- Publication number
- BE511553A BE511553A BE511553DA BE511553A BE 511553 A BE511553 A BE 511553A BE 511553D A BE511553D A BE 511553DA BE 511553 A BE511553 A BE 511553A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR304895X | 1951-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE511553A true BE511553A (US20090163788A1-20090625-C00002.png) |
Family
ID=8888827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE511553D BE511553A (US20090163788A1-20090625-C00002.png) | 1951-05-23 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE511553A (US20090163788A1-20090625-C00002.png) |
| CH (1) | CH304895A (US20090163788A1-20090625-C00002.png) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1129543B (de) * | 1958-06-25 | 1962-05-17 | Gylling & Co Ab | Schaltungsanordnung fuer sprachgesteuerte Wechselsprechanlagen |
-
0
- BE BE511553D patent/BE511553A/xx unknown
-
1952
- 1952-05-20 CH CH304895D patent/CH304895A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1129543B (de) * | 1958-06-25 | 1962-05-17 | Gylling & Co Ab | Schaltungsanordnung fuer sprachgesteuerte Wechselsprechanlagen |
Also Published As
| Publication number | Publication date |
|---|---|
| CH304895A (fr) | 1955-01-31 |
