BE360385A - - Google Patents
Info
- Publication number
- BE360385A BE360385A BE360385DA BE360385A BE 360385 A BE360385 A BE 360385A BE 360385D A BE360385D A BE 360385DA BE 360385 A BE360385 A BE 360385A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Braking Arrangements (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE311274X | 1928-05-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE360385A true BE360385A (zh) |
Family
ID=20307629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE360385D BE360385A (zh) | 1928-05-08 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE360385A (zh) |
| FR (1) | FR674600A (zh) |
| GB (1) | GB311274A (zh) |
-
0
- BE BE360385D patent/BE360385A/xx unknown
-
1929
- 1929-04-24 GB GB12756/29A patent/GB311274A/en not_active Expired
- 1929-05-04 FR FR674600D patent/FR674600A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR674600A (fr) | 1930-01-30 |
| GB311274A (en) | 1930-05-08 |