FR2134028A1 - - Google Patents

Info

Publication number
FR2134028A1
FR2134028A1 FR7214203A FR7214203A FR2134028A1 FR 2134028 A1 FR2134028 A1 FR 2134028A1 FR 7214203 A FR7214203 A FR 7214203A FR 7214203 A FR7214203 A FR 7214203A FR 2134028 A1 FR2134028 A1 FR 2134028A1
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Withdrawn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
FR7214203A
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2134028A1 publication Critical patent/FR2134028A1/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Withdrawn legal-status Critical Current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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
FR7214203A 1971-04-23 1972-04-21 Withdrawn FR2134028A1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1101771 1971-04-23

Publications (1)

Publication Number Publication Date
FR2134028A1 true FR2134028A1 (ja) 1972-12-01

Family

ID=9978525

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7214203A Withdrawn FR2134028A1 (ja) 1971-04-23 1972-04-21

Country Status (2)

Country Link
FR (1) FR2134028A1 (ja)
GB (1) GB1297093A (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2210071A1 (ja) * 1972-12-06 1974-07-05 Philips Nv

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2210071A1 (ja) * 1972-12-06 1974-07-05 Philips Nv

Also Published As

Publication number Publication date
GB1297093A (ja) 1972-11-22

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Legal Events

Date Code Title Description
ST Notification of lapse