BE426131A - - Google Patents
Info
- Publication number
- BE426131A BE426131A BE426131DA BE426131A BE 426131 A BE426131 A BE 426131A BE 426131D A BE426131D A BE 426131DA BE 426131 A BE426131 A BE 426131A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/14—Arrangements providing for calling or supervisory signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL514362X | 1937-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE426131A true BE426131A (en:Method) |
Family
ID=19786941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE426131D BE426131A (en:Method) | 1937-02-03 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE426131A (en:Method) |
| FR (1) | FR833013A (en:Method) |
| GB (1) | GB514362A (en:Method) |
-
0
- BE BE426131D patent/BE426131A/xx unknown
-
1938
- 1938-01-31 GB GB2979/38A patent/GB514362A/en not_active Expired
- 1938-02-01 FR FR833013D patent/FR833013A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR833013A (fr) | 1938-10-10 |
| GB514362A (en) | 1939-11-06 |