FR636213A - - Google Patents
Info
- Publication number
- FR636213A FR636213A FR636213DA FR636213A FR 636213 A FR636213 A FR 636213A FR 636213D A FR636213D A FR 636213DA FR 636213 A FR636213 A FR 636213A
- 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
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
- H04R5/023—Spatial or constructional arrangements of loudspeakers in a chair, pillow
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR636213A true FR636213A (xx) | 1928-04-04 |
Family
ID=1542109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR636213D Expired FR636213A (xx) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR636213A (xx) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2447470A (en) * | 1943-12-17 | 1948-08-17 | Oxzyn Company | Noise insulating ring for earphones |
| FR2538204A1 (fr) * | 1982-12-20 | 1984-06-22 | Decrozant Jacques | Moufle ecouteur |
-
0
- FR FR636213D patent/FR636213A/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2447470A (en) * | 1943-12-17 | 1948-08-17 | Oxzyn Company | Noise insulating ring for earphones |
| FR2538204A1 (fr) * | 1982-12-20 | 1984-06-22 | Decrozant Jacques | Moufle ecouteur |