FR56444E - - Google Patents
Info
- Publication number
- FR56444E FR56444E FR56444DA FR56444E FR 56444 E FR56444 E FR 56444E FR 56444D A FR56444D A FR 56444DA FR 56444 E FR56444 E FR 56444E
- 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
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR997251T | 1945-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR56444E true FR56444E (es) | 1952-10-07 |
Family
ID=9558476
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR56444D Expired FR56444E (es) | 1945-06-25 | ||
| FR997251D Expired FR997251A (fr) | 1945-06-25 | 1945-06-25 | Perfectionnements apportés aux installations de téléphonie, notamment de téléphonie haut-parleur |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR997251D Expired FR997251A (fr) | 1945-06-25 | 1945-06-25 | Perfectionnements apportés aux installations de téléphonie, notamment de téléphonie haut-parleur |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE460657A (es) |
| FR (2) | FR997251A (es) |
| LU (1) | LU27795A1 (es) |
-
0
- FR FR56444D patent/FR56444E/fr not_active Expired
- LU LU27795D patent/LU27795A1/xx unknown
- BE BE460657D patent/BE460657A/xx unknown
-
1945
- 1945-06-25 FR FR997251D patent/FR997251A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| LU27795A1 (es) | |
| BE460657A (es) | |
| FR997251A (fr) | 1952-01-03 |