FR2149371B3 - - Google Patents
Info
- Publication number
- FR2149371B3 FR2149371B3 FR7228427A FR7228427A FR2149371B3 FR 2149371 B3 FR2149371 B3 FR 2149371B3 FR 7228427 A FR7228427 A FR 7228427A FR 7228427 A FR7228427 A FR 7228427A FR 2149371 B3 FR2149371 B3 FR 2149371B3
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1008—Earpieces of the supra-aural or circum-aural type
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17312871A | 1971-08-19 | 1971-08-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2149371A1 FR2149371A1 (xx) | 1973-03-30 |
| FR2149371B3 true FR2149371B3 (xx) | 1975-10-03 |
Family
ID=22630656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7228427A Expired FR2149371B3 (xx) | 1971-08-19 | 1972-08-07 |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS4830417A (xx) |
| BE (1) | BE787716A (xx) |
| CA (1) | CA982686A (xx) |
| CH (1) | CH566697A5 (xx) |
| DE (1) | DE2236219A1 (xx) |
| FR (1) | FR2149371B3 (xx) |
| GB (1) | GB1334347A (xx) |
| IT (1) | IT961893B (xx) |
| NL (1) | NL7210334A (xx) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5623140B2 (xx) * | 1974-04-17 | 1981-05-29 | ||
| JPS5132529U (xx) * | 1974-08-31 | 1976-03-10 | ||
| NL7512512A (nl) * | 1975-10-27 | 1977-04-29 | Bernardus Gradus Peters | Werkwijze en inrichting voor het vervaardigen van een elektrostatische luidspreker. |
| JPS53132330A (en) * | 1977-04-22 | 1978-11-18 | Guradousu Peetaas Berunaadousu | Electrostatic loudspeaker |
| US4105877A (en) * | 1977-04-25 | 1978-08-08 | Peters Bernardus Gradus | Electrostatic loudspeaker having elastic diaphragm spacer elements cured in situ |
| DE2836937B2 (de) * | 1977-08-31 | 1981-06-25 | AKG Akustische u. Kino-Geräte GmbH, Wien | Kopfhörer |
| JPS552863A (en) * | 1979-01-26 | 1980-01-10 | Tlv Co Ltd | Disc type steam trap |
| US4533794A (en) * | 1983-05-23 | 1985-08-06 | Beveridge Harold N | Electrode for electrostatic transducer |
| JPH0329675Y2 (xx) * | 1985-04-15 | 1991-06-24 | ||
| JP2764225B2 (ja) * | 1990-12-14 | 1998-06-11 | 株式会社テイエルブイ | ディスク式スチ―ムトラップ |
-
1972
- 1972-06-08 JP JP5654172A patent/JPS4830417A/ja active Pending
- 1972-06-12 GB GB2738772A patent/GB1334347A/en not_active Expired
- 1972-07-19 CA CA147,495A patent/CA982686A/en not_active Expired
- 1972-07-24 DE DE19722236219 patent/DE2236219A1/de active Pending
- 1972-07-27 NL NL7210334A patent/NL7210334A/xx not_active Application Discontinuation
- 1972-08-05 IT IT5202172A patent/IT961893B/it active
- 1972-08-07 FR FR7228427A patent/FR2149371B3/fr not_active Expired
- 1972-08-18 CH CH1231472A patent/CH566697A5/xx not_active IP Right Cessation
- 1972-08-18 BE BE787716A patent/BE787716A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA982686A (en) | 1976-01-27 |
| DE2236219A1 (de) | 1973-04-19 |
| CH566697A5 (xx) | 1975-09-15 |
| IT961893B (it) | 1973-12-10 |
| NL7210334A (xx) | 1973-02-21 |
| GB1334347A (en) | 1973-10-17 |
| JPS4830417A (xx) | 1973-04-21 |
| BE787716A (fr) | 1972-12-18 |
| FR2149371A1 (xx) | 1973-03-30 |