FR889500A - - Google Patents
Info
- Publication number
- FR889500A FR889500A FR889500DA FR889500A FR 889500 A FR889500 A FR 889500A FR 889500D A FR889500D A FR 889500DA FR 889500 A FR889500 A FR 889500A
- 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
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/78—Circuit arrangements in which low-frequency speech signals proceed in one direction on the line, while speech signals proceeding in the other direction on the line are modulated on a high-frequency carrier signal
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR889500A true FR889500A (uk) | 1944-01-11 |
Family
ID=1556589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR889500D Expired FR889500A (uk) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR889500A (uk) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE930025C (de) * | 1950-05-31 | 1955-07-07 | Bayer Ag | Verfahren zum Bedrucken von Faserstoffen |
-
0
- FR FR889500D patent/FR889500A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE930025C (de) * | 1950-05-31 | 1955-07-07 | Bayer Ag | Verfahren zum Bedrucken von Faserstoffen |