DE245049C - - Google Patents

Info

Publication number
DE245049C
DE245049C DENDAT245049D DE245049DA DE245049C DE 245049 C DE245049 C DE 245049C DE NDAT245049 D DENDAT245049 D DE NDAT245049D DE 245049D A DE245049D A DE 245049DA DE 245049 C DE245049 C DE 245049C
Authority
DE
Germany
Prior art keywords
funnel
speaking
air
closest
heated
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.)
Active
Application number
DENDAT245049D
Other languages
German (de)
English (en)
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.)
Publication of DE245049C publication Critical patent/DE245049C/de
Active legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/08Mouthpieces; Microphones; Attachments therefor
    • H04R1/083Special constructions of mouthpieces

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Resistance Heating (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
DENDAT245049D 1910-11-11 Active DE245049C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK435921X 1910-11-11

Publications (1)

Publication Number Publication Date
DE245049C true DE245049C (enrdf_load_stackoverflow)

Family

ID=32523874

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT245049D Active DE245049C (enrdf_load_stackoverflow) 1910-11-11

Country Status (3)

Country Link
DE (1) DE245049C (enrdf_load_stackoverflow)
FR (1) FR435921A (enrdf_load_stackoverflow)
GB (1) GB191124098A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014086947A1 (de) * 2012-12-06 2014-06-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Lautsprecher mit druck-kompensations-element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014086947A1 (de) * 2012-12-06 2014-06-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Lautsprecher mit druck-kompensations-element

Also Published As

Publication number Publication date
GB191124098A (en) 1912-05-09
FR435921A (fr) 1912-03-13

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