FR958687A - - Google Patents
Info
- Publication number
- FR958687A FR958687A FR958687DA FR958687A FR 958687 A FR958687 A FR 958687A FR 958687D A FR958687D A FR 958687DA FR 958687 A FR958687 A FR 958687A
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB283600X | 1940-01-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR958687A true FR958687A (it) | 1950-03-17 |
Family
ID=10274419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR958687D Expired FR958687A (it) | 1940-01-13 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE476736A (it) |
| CH (1) | CH283600A (it) |
| FR (1) | FR958687A (it) |
| GB (1) | GB537966A (it) |
-
0
- BE BE476736D patent/BE476736A/xx unknown
- FR FR958687D patent/FR958687A/fr not_active Expired
-
1940
- 1940-01-13 GB GB783/40A patent/GB537966A/en not_active Expired
-
1947
- 1947-08-12 CH CH283600D patent/CH283600A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE476736A (it) | |
| GB537966A (en) | 1941-07-15 |
| CH283600A (fr) | 1952-06-15 |