FR984301A - Installation de petite centrale téléphonique - Google Patents
Installation de petite centrale téléphoniqueInfo
- Publication number
- FR984301A FR984301A FR984301DA FR984301A FR 984301 A FR984301 A FR 984301A FR 984301D A FR984301D A FR 984301DA FR 984301 A FR984301 A FR 984301A
- Authority
- FR
- France
- Prior art keywords
- installation
- telephone exchange
- small telephone
- small
- exchange
- 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
- H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
- H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH984301X | 1948-12-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR984301A true FR984301A (fr) | 1951-07-04 |
Family
ID=4551502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR984301D Expired FR984301A (fr) | 1948-12-15 | 1949-04-07 | Installation de petite centrale téléphonique |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE489131A (pl) |
| FR (1) | FR984301A (pl) |
-
0
- BE BE489131D patent/BE489131A/xx unknown
-
1949
- 1949-04-07 FR FR984301D patent/FR984301A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE489131A (pl) |
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