DE174193C - - Google Patents

Info

Publication number
DE174193C
DE174193C DENDAT174193D DE174193DA DE174193C DE 174193 C DE174193 C DE 174193C DE NDAT174193 D DENDAT174193 D DE NDAT174193D DE 174193D A DE174193D A DE 174193DA DE 174193 C DE174193 C DE 174193C
Authority
DE
Germany
Prior art keywords
membrane
gramophones
phonographs
telephones
sound
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
DENDAT174193D
Other languages
German (de)
English (en)
Publication of DE174193C publication Critical patent/DE174193C/de
Active 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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
DENDAT174193D Active DE174193C (cs)

Publications (1)

Publication Number Publication Date
DE174193C true DE174193C (cs)

Family

ID=438947

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT174193D Active DE174193C (cs)

Country Status (1)

Country Link
DE (1) DE174193C (cs)

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