BE356565A - - Google Patents
Info
- Publication number
- BE356565A BE356565A BE356565DA BE356565A BE 356565 A BE356565 A BE 356565A BE 356565D A BE356565D A BE 356565DA BE 356565 A BE356565 A BE 356565A
- 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)
- Telephone Set Structure (AREA)
- Mechanisms For Operating Contacts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1462228A GB317522A (en) | 1928-05-18 | 1928-05-18 | Improvements in or relating to dial switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE356565A true BE356565A (en, 2012) |
Family
ID=10044567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE356565D BE356565A (en, 2012) | 1928-05-18 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE356565A (en, 2012) |
| DE (1) | DE611036C (en, 2012) |
| FR (1) | FR666059A (en, 2012) |
| GB (1) | GB317522A (en, 2012) |
-
0
- BE BE356565D patent/BE356565A/xx unknown
-
1928
- 1928-05-18 GB GB1462228A patent/GB317522A/en not_active Expired
- 1928-11-15 DE DEI36138D patent/DE611036C/de not_active Expired
- 1928-12-19 FR FR666059D patent/FR666059A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE611036C (de) | 1935-03-21 |
| FR666059A (fr) | 1929-09-26 |
| GB317522A (en) | 1929-08-19 |