BE420598A - - Google Patents
Info
- Publication number
- BE420598A BE420598A BE420598DA BE420598A BE 420598 A BE420598 A BE 420598A BE 420598D A BE420598D A BE 420598DA BE 420598 A BE420598 A BE 420598A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/16—Monitoring arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US73067A US2089179A (en) | 1936-04-07 | 1936-04-07 | Coaxial transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE420598A true BE420598A (ja) | 1900-01-01 |
Family
ID=22111521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE420598D BE420598A (ja) | 1936-04-07 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2089179A (ja) |
| BE (1) | BE420598A (ja) |
| FR (1) | FR822129A (ja) |
| GB (1) | GB472806A (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR959685A (ja) * | 1941-04-17 | 1950-03-31 | ||
| BE793053A (fr) * | 1971-12-20 | 1973-06-20 | Siemens Ag | Montage pour des lignes d'abonnes comportant deux lignes bifilaires symetriques pour la transmission supplementaire de signaux, en particulierpour des video-telephones |
| US3973170A (en) * | 1974-09-09 | 1976-08-03 | Honeywell Inc. | Intrinsic safety barrier |
| US5880535A (en) * | 1997-10-14 | 1999-03-09 | Honeycutt; Larry W. | Tap resistant security circuit |
-
0
- BE BE420598D patent/BE420598A/xx unknown
-
1936
- 1936-04-07 US US73067A patent/US2089179A/en not_active Expired - Lifetime
-
1937
- 1937-04-01 FR FR822129D patent/FR822129A/fr not_active Expired
- 1937-04-07 GB GB9918/37A patent/GB472806A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2089179A (en) | 1937-08-10 |
| FR822129A (fr) | 1937-12-21 |
| GB472806A (en) | 1937-09-30 |