FR613556A - - Google Patents
Info
- Publication number
- FR613556A FR613556A FR613556DA FR613556A FR 613556 A FR613556 A FR 613556A FR 613556D A FR613556D A FR 613556DA FR 613556 A FR613556 A FR 613556A
- 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
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1852925A GB260330A (en) | 1925-07-20 | 1925-07-20 | Improvements in or relating to telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR613556A true FR613556A (instruction) | 1926-11-24 |
Family
ID=10113984
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR613556D Expired FR613556A (instruction) | 1925-07-20 | ||
| FR32235D Expired FR32235E (fr) | 1925-07-20 | 1926-07-19 | Système téléphonique à impulsions directes |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR32235D Expired FR32235E (fr) | 1925-07-20 | 1926-07-19 | Système téléphonique à impulsions directes |
Country Status (2)
| Country | Link |
|---|---|
| FR (2) | FR32235E (instruction) |
| GB (2) | GB252444A (instruction) |
-
0
- FR FR613556D patent/FR613556A/fr not_active Expired
-
1925
- 1925-02-24 GB GB509025A patent/GB252444A/en not_active Expired
- 1925-07-20 GB GB1852925A patent/GB260330A/en not_active Expired
-
1926
- 1926-07-19 FR FR32235D patent/FR32235E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB252444A (en) | 1926-05-25 |
| GB260330A (en) | 1926-10-20 |
| FR32235E (fr) | 1927-09-13 |