FR2021232A1 - - Google Patents

Info

Publication number
FR2021232A1
FR2021232A1 FR6936069A FR6936069A FR2021232A1 FR 2021232 A1 FR2021232 A1 FR 2021232A1 FR 6936069 A FR6936069 A FR 6936069A FR 6936069 A FR6936069 A FR 6936069A FR 2021232 A1 FR2021232 A1 FR 2021232A1
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.)
Withdrawn
Application number
FR6936069A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kureha Corp
Pioneer Corp
Original Assignee
Kureha Corp
Pioneer Electronic Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kureha Corp, Pioneer Electronic Corp filed Critical Kureha Corp
Publication of FR2021232A1 publication Critical patent/FR2021232A1/fr
Withdrawn legal-status Critical Current

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
    • H04R19/01—Electrostatic transducers characterised by the use of electrets

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
FR6936069A 1968-10-22 1969-10-21 Withdrawn FR2021232A1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7657268 1968-10-22

Publications (1)

Publication Number Publication Date
FR2021232A1 true FR2021232A1 (enrdf_load_stackoverflow) 1970-07-17

Family

ID=13608935

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6936069A Withdrawn FR2021232A1 (enrdf_load_stackoverflow) 1968-10-22 1969-10-21

Country Status (3)

Country Link
DE (1) DE1952999A1 (enrdf_load_stackoverflow)
FR (1) FR2021232A1 (enrdf_load_stackoverflow)
GB (1) GB1292281A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199242A1 (enrdf_load_stackoverflow) * 1972-09-08 1974-04-05 Uniroyal Ltd

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4115221C2 (de) * 1991-05-10 1994-09-01 Sennheiser Electronic Elektroakustischer Wandler nach dem elektrostatischen Prinzip

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2199242A1 (enrdf_load_stackoverflow) * 1972-09-08 1974-04-05 Uniroyal Ltd

Also Published As

Publication number Publication date
DE1952999A1 (de) 1970-08-13
GB1292281A (en) 1972-10-11

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Legal Events

Date Code Title Description
ST Notification of lapse