BE656300A - - Google Patents
Info
- Publication number
- BE656300A BE656300A BE656300DA BE656300A BE 656300 A BE656300 A BE 656300A BE 656300D A BE656300D A BE 656300DA BE 656300 A BE656300 A BE 656300A
- 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
- H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
- H04Q1/22—Automatic arrangements
- H04Q1/24—Automatic arrangements for connection devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/08—Indicating faults in circuits or apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US325866A US3335234A (en) | 1963-11-26 | 1963-11-26 | Automatic monitoring circuit for stepby-step telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE656300A true BE656300A (xx) | 1965-03-16 |
Family
ID=23269797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE656300D BE656300A (xx) | 1963-11-26 | 1964-11-26 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3335234A (xx) |
| BE (1) | BE656300A (xx) |
| DE (1) | DE1437580A1 (xx) |
| GB (1) | GB1068630A (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3859479A (en) * | 1973-05-29 | 1975-01-07 | Bell Telephone Labor Inc | Monitoring arrangement for a step-by-step switching train |
-
1963
- 1963-11-26 US US325866A patent/US3335234A/en not_active Expired - Lifetime
-
1964
- 1964-11-18 GB GB46908/64A patent/GB1068630A/en not_active Expired
- 1964-11-21 DE DE19641437580 patent/DE1437580A1/de active Pending
- 1964-11-26 BE BE656300D patent/BE656300A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3335234A (en) | 1967-08-08 |
| DE1437580B2 (xx) | 1970-10-29 |
| GB1068630A (en) | 1967-05-10 |
| DE1437580A1 (de) | 1969-05-29 |