FR442658A - Dispositif applicable aux microphones - Google Patents

Dispositif applicable aux microphones

Info

Publication number
FR442658A
FR442658A FR442658DA FR442658A FR 442658 A FR442658 A FR 442658A FR 442658D A FR442658D A FR 442658DA FR 442658 A FR442658 A FR 442658A
Authority
FR
France
Prior art keywords
microphones
device applicable
applicable
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
Application number
Other languages
English (en)
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR442658A publication Critical patent/FR442658A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR442658D 1911-05-11 1912-04-18 Dispositif applicable aux microphones Expired FR442658A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE442658X 1911-05-11

Publications (1)

Publication Number Publication Date
FR442658A true FR442658A (fr) 1912-09-06

Family

ID=1483807

Family Applications (1)

Application Number Title Priority Date Filing Date
FR442658D Expired FR442658A (fr) 1911-05-11 1912-04-18 Dispositif applicable aux microphones

Country Status (1)

Country Link
FR (1) FR442658A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967081C (de) * 1951-04-06 1957-10-03 Fernsprech U Signalbaugesellsc Mikrotelefon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967081C (de) * 1951-04-06 1957-10-03 Fernsprech U Signalbaugesellsc Mikrotelefon

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