FR562634A - Haut-parleur - Google Patents
Haut-parleurInfo
- Publication number
- FR562634A FR562634A FR562634DA FR562634A FR 562634 A FR562634 A FR 562634A FR 562634D A FR562634D A FR 562634DA FR 562634 A FR562634 A FR 562634A
- Authority
- FR
- France
- Prior art keywords
- loud speaker
- loud
- speaker
- 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
-
- 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
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
- G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR562634T | 1923-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR562634A true FR562634A (fr) | 1923-11-15 |
Family
ID=8944424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR562634D Expired FR562634A (fr) | 1923-02-23 | 1923-02-23 | Haut-parleur |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR562634A (fr) |
-
1923
- 1923-02-23 FR FR562634D patent/FR562634A/fr not_active Expired
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