BE435549A - - Google Patents
Info
- Publication number
- BE435549A BE435549A BE435549DA BE435549A BE 435549 A BE435549 A BE 435549A BE 435549D A BE435549D A BE 435549DA BE 435549 A BE435549 A BE 435549A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses
- H04Q1/34—Impulse regenerators with mechanical or other non-electrical marking arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Structure Of Telephone Exchanges (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB21485/38A GB513811A (en) | 1938-07-20 | 1938-07-20 | Improvements in impulse registering devices of the type used in telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE435549A true BE435549A (ja) |
Family
ID=27772852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE435549D BE435549A (ja) | 1938-07-20 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2256869A (ja) |
| BE (1) | BE435549A (ja) |
| GB (1) | GB513811A (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2624785A (en) * | 1949-07-19 | 1953-01-06 | Kellogg Switchboard & Supply | Counting and registering relay circuit |
-
0
- BE BE435549D patent/BE435549A/xx unknown
-
1938
- 1938-07-20 GB GB21485/38A patent/GB513811A/en not_active Expired
-
1939
- 1939-07-19 US US285392A patent/US2256869A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB513811A (en) | 1939-10-23 |
| US2256869A (en) | 1941-09-23 |