BE352632A - - Google Patents
Info
- Publication number
- BE352632A BE352632A BE352632DA BE352632A BE 352632 A BE352632 A BE 352632A BE 352632D A BE352632D A BE 352632DA BE 352632 A BE352632 A BE 352632A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US203654A US1778207A (en) | 1927-07-05 | 1927-07-05 | Test set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE352632A true BE352632A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=22754796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE352632D BE352632A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1927-07-05 |
Country Status (3)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2689885A (en) * | 1950-04-11 | 1954-09-21 | Webster Electric Co Inc | Transducer |
| US3173998A (en) * | 1960-12-19 | 1965-03-16 | Howard R Deuser | Testing equipment for telephone lines |
-
0
- BE BE352632D patent/BE352632A/xx unknown
-
1927
- 1927-07-05 US US203654A patent/US1778207A/en not_active Expired - Lifetime
-
1928
- 1928-07-05 FR FR662634D patent/FR662634A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1778207A (en) | 1930-10-14 |
| FR662634A (fr) | 1929-08-09 |