FR957150A - - Google Patents
Info
- Publication number
- FR957150A FR957150A FR957150DA FR957150A FR 957150 A FR957150 A FR 957150A FR 957150D A FR957150D A FR 957150DA FR 957150 A FR957150 A FR 957150A
- 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
- H04M1/57—Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB272710X | 1945-09-14 | ||
| GB81146X | 1946-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR957150A true FR957150A (forum.php) | 1950-02-16 |
Family
ID=26241947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR957150D Expired FR957150A (forum.php) | 1945-09-14 |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH272710A (forum.php) |
| FR (1) | FR957150A (forum.php) |
| GB (1) | GB626672A (forum.php) |
-
0
- FR FR957150D patent/FR957150A/fr not_active Expired
-
1946
- 1946-11-08 GB GB33223/46A patent/GB626672A/en not_active Expired
-
1947
- 1947-11-05 CH CH272710D patent/CH272710A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH272710A (fr) | 1950-12-31 |
| GB626672A (en) | 1949-07-19 |