FR2388449B1 - - Google Patents
Info
- Publication number
- FR2388449B1 FR2388449B1 FR7712489A FR7712489A FR2388449B1 FR 2388449 B1 FR2388449 B1 FR 2388449B1 FR 7712489 A FR7712489 A FR 7712489A FR 7712489 A FR7712489 A FR 7712489A FR 2388449 B1 FR2388449 B1 FR 2388449B1
- 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
- H04R19/00—Electrostatic transducers
- H04R19/02—Loudspeakers
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7512512A NL7512512A (nl) | 1975-10-27 | 1975-10-27 | Werkwijze en inrichting voor het vervaardigen van een elektrostatische luidspreker. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2388449A1 FR2388449A1 (fr) | 1978-11-17 |
FR2388449B1 true FR2388449B1 (fr) | 1982-02-26 |
Family
ID=19824732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7712489A Granted FR2388449A1 (fr) | 1975-10-27 | 1977-04-22 | Haut-parleur electrostatique et son procede d'execution |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2600742C3 (fr) |
FR (1) | FR2388449A1 (fr) |
GB (1) | GB1559519A (fr) |
NL (1) | NL7512512A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57125600A (en) * | 1981-02-21 | 1982-08-04 | Bulgarsko Radio | Electrostatic acoustic converter |
DE4022933A1 (de) * | 1990-07-19 | 1992-01-23 | Kordes & Echle Audio Gmbh | Elektrostatischer lautsprecher |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3403234A (en) * | 1964-09-11 | 1968-09-24 | Northrop Corp | Acoustic transducer |
FR1465965A (fr) * | 1966-01-21 | 1967-01-13 | Perfectionnements aux haut-parleurs électrostatiques de grandes dimensions | |
GB1262506A (en) * | 1968-04-29 | 1972-02-02 | Lloyd Joseph Bobb | Electrostatic loudspeaker |
US3821490A (en) * | 1970-10-09 | 1974-06-28 | Chester C Pond | Electroacoustic transducer especially electrostatic speakers and systems |
JPS4830417A (fr) * | 1971-08-19 | 1973-04-21 |
-
1975
- 1975-10-27 NL NL7512512A patent/NL7512512A/xx not_active Application Discontinuation
-
1976
- 1976-01-10 DE DE19762600742 patent/DE2600742C3/de not_active Expired
- 1976-10-26 GB GB4448076A patent/GB1559519A/en not_active Expired
-
1977
- 1977-04-22 FR FR7712489A patent/FR2388449A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
DE2600742A1 (de) | 1977-04-28 |
DE2600742B2 (de) | 1981-06-25 |
GB1559519A (en) | 1980-01-23 |
NL7512512A (nl) | 1977-04-29 |
DE2600742C3 (de) | 1982-02-25 |
FR2388449A1 (fr) | 1978-11-17 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |