BE354335A - - Google Patents
Info
- Publication number
- BE354335A BE354335A BE354335DA BE354335A BE 354335 A BE354335 A BE 354335A BE 354335D A BE354335D A BE 354335DA BE 354335 A BE354335 A BE 354335A
- 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)
- Mechanical Operated Clutches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE297388X | 1927-09-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE354335A true BE354335A (en:Method) |
Family
ID=20307354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE354335D BE354335A (en:Method) | 1927-09-20 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE354335A (en:Method) |
| FR (1) | FR660657A (en:Method) |
| GB (1) | GB297388A (en:Method) |
-
0
- BE BE354335D patent/BE354335A/xx unknown
-
1928
- 1928-09-18 GB GB26735/28A patent/GB297388A/en not_active Expired
- 1928-09-19 FR FR660657D patent/FR660657A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR660657A (fr) | 1929-07-16 |
| GB297388A (en) | 1929-09-19 |