FR959415A - - Google Patents
Info
- Publication number
- FR959415A FR959415A FR959415DA FR959415A FR 959415 A FR959415 A FR 959415A FR 959415D A FR959415D A FR 959415DA FR 959415 A FR959415 A FR 959415A
- 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
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
- H04R27/02—Amplifying systems for the deaf
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL265341X | 1947-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR959415A true FR959415A (zh) | 1950-03-30 |
Family
ID=19781692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR959415D Expired FR959415A (zh) | 1947-07-12 |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH265341A (zh) |
| FR (1) | FR959415A (zh) |
-
0
- FR FR959415D patent/FR959415A/fr not_active Expired
-
1948
- 1948-07-12 CH CH265341D patent/CH265341A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH265341A (de) | 1949-11-30 |