BE436177A - - Google Patents
Info
- Publication number
- BE436177A BE436177A BE436177A BE436177A BE436177A BE 436177 A BE436177 A BE 436177A BE 436177 A BE436177 A BE 436177A BE 436177 A BE436177 A BE 436177A BE 436177 A BE436177 A BE 436177A
- 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
- H04M1/34—Lost-motion or other arrangements for ensuring a pause between successive digit transmissions
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB25188/38A GB518721A (en) | 1938-08-27 | 1938-08-27 | Improvements in impulse senders of the type used in telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE436177A true BE436177A (en) | 1939-09-30 |
Family
ID=10223660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE436177A BE436177A (en) | 1938-08-27 | 1939-08-26 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2276514A (en) |
| BE (1) | BE436177A (en) |
| GB (1) | GB518721A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522004A (en) * | 1947-12-24 | 1950-09-12 | Telephonics Corp | Electric impulse transmitter pawl silencer |
-
1938
- 1938-08-27 GB GB25188/38A patent/GB518721A/en not_active Expired
-
1939
- 1939-08-14 US US289949A patent/US2276514A/en not_active Expired - Lifetime
- 1939-08-26 BE BE436177A patent/BE436177A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2276514A (en) | 1942-03-17 |
| GB518721A (en) | 1940-03-06 |