FR658366A - - Google Patents
Info
- Publication number
- FR658366A FR658366A FR658366DA FR658366A FR 658366 A FR658366 A FR 658366A FR 658366D A FR658366D A FR 658366DA FR 658366 A FR658366 A FR 658366A
- 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
- H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
- H04M3/64—Arrangements for signalling the number or class of the calling line to the operator
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US223880A US1678103A (en) | 1927-10-04 | 1927-10-04 | Telephone system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR658366A true FR658366A (xx) | 1929-06-14 |
Family
ID=22838336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR658366D Expired FR658366A (xx) | 1927-10-04 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1678103A (xx) |
| FR (1) | FR658366A (xx) |
| GB (1) | GB298164A (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3377429A (en) * | 1960-07-20 | 1968-04-09 | Marathon Oil Co | Audio readout of remotely located meter |
-
0
- FR FR658366D patent/FR658366A/fr not_active Expired
-
1927
- 1927-10-04 US US223880A patent/US1678103A/en not_active Expired - Lifetime
-
1928
- 1928-10-04 GB GB28467/28A patent/GB298164A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB298164A (en) | 1930-01-06 |
| US1678103A (en) | 1928-07-24 |