FR964882A - - Google Patents
Info
- Publication number
- FR964882A FR964882A FR964882DA FR964882A FR 964882 A FR964882 A FR 964882A FR 964882D A FR964882D A FR 964882DA FR 964882 A FR964882 A FR 964882A
- 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
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
- H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Circuits Of Receivers In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1044647A GB641431A (en) | 1947-04-18 | 1947-04-18 | Improvements in or relating to voice and like signal operated circuit arrangements and devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR964882A true FR964882A (xx) | 1950-08-26 |
Family
ID=9968006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR964882D Expired FR964882A (xx) | 1947-04-18 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR964882A (xx) |
| GB (1) | GB641431A (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2932027A (en) * | 1955-03-09 | 1960-04-05 | Smith Corp A O | Antenna |
-
0
- FR FR964882D patent/FR964882A/fr not_active Expired
-
1947
- 1947-04-18 GB GB1044647A patent/GB641431A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB641431A (en) | 1950-08-09 |