FR663162A - - Google Patents
Info
- Publication number
- FR663162A FR663162A FR663162DA FR663162A FR 663162 A FR663162 A FR 663162A FR 663162D A FR663162D A FR 663162DA FR 663162 A FR663162 A FR 663162A
- 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR663162A true FR663162A (fr) | 1929-08-28 |
Family
ID=1543261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR663162D Expired FR663162A (fr) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR663162A (fr) |
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0
- FR FR663162D patent/FR663162A/fr not_active Expired