BE386705A - - Google Patents
Info
- Publication number
- BE386705A BE386705A BE386705DA BE386705A BE 386705 A BE386705 A BE 386705A BE 386705D A BE386705D A BE 386705DA BE 386705 A BE386705 A BE 386705A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M19/00—Current supply arrangements for telephone systems
- H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Supply And Installment Of Electrical Components (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE397177X | 1931-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE386705A true BE386705A (en:Method) |
Family
ID=20309387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE386705D BE386705A (en:Method) | 1931-02-25 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE386705A (en:Method) |
| GB (1) | GB397177A (en:Method) |
-
0
- BE BE386705D patent/BE386705A/xx unknown
-
1932
- 1932-02-19 GB GB4995/32A patent/GB397177A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB397177A (en) | 1933-08-21 |