FR613558A - - Google Patents
Info
- Publication number
- FR613558A FR613558A FR613558DA FR613558A FR 613558 A FR613558 A FR 613558A FR 613558D A FR613558D A FR 613558DA FR 613558 A FR613558 A FR 613558A
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Relay Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB14485/25A GB257661A (en) | 1925-06-04 | 1925-06-04 | Improvements in or relating to telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR613558A true FR613558A (ru) | 1926-11-24 |
Family
ID=10042038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR613558D Expired FR613558A (ru) | 1925-06-04 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1688161A (ru) |
| FR (1) | FR613558A (ru) |
| GB (1) | GB257661A (ru) |
-
0
- FR FR613558D patent/FR613558A/fr not_active Expired
- US US1688161D patent/US1688161A/en not_active Expired - Lifetime
-
1925
- 1925-06-04 GB GB14485/25A patent/GB257661A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB257661A (en) | 1926-09-06 |
| US1688161A (en) | 1928-10-16 |