FR1305066A - Installation of duplex telephony - Google Patents
Installation of duplex telephonyInfo
- Publication number
- FR1305066A FR1305066A FR878156A FR878156A FR1305066A FR 1305066 A FR1305066 A FR 1305066A FR 878156 A FR878156 A FR 878156A FR 878156 A FR878156 A FR 878156A FR 1305066 A FR1305066 A FR 1305066A
- Authority
- FR
- France
- Prior art keywords
- installation
- duplex telephony
- telephony
- duplex
- Prior art date
- 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
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/001—Two-way communication systems between a limited number of parties
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR878156A FR1305066A (en) | 1961-11-07 | 1961-11-07 | Installation of duplex telephony |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR878156A FR1305066A (en) | 1961-11-07 | 1961-11-07 | Installation of duplex telephony |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1305066A true FR1305066A (en) | 1962-09-28 |
Family
ID=8766171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR878156A Expired FR1305066A (en) | 1961-11-07 | 1961-11-07 | Installation of duplex telephony |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1305066A (en) |
-
1961
- 1961-11-07 FR FR878156A patent/FR1305066A/en not_active Expired
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