DE284792C - - Google Patents

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Publication number
DE284792C
DE284792C DENDAT284792D DE284792DA DE284792C DE 284792 C DE284792 C DE 284792C DE NDAT284792 D DENDAT284792 D DE NDAT284792D DE 284792D A DE284792D A DE 284792DA DE 284792 C DE284792 C DE 284792C
Authority
DE
Germany
Prior art keywords
coils
resistance
contact
spring
coil
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
DENDAT284792D
Other languages
German (de)
English (en)
Publication of DE284792C publication Critical patent/DE284792C/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
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • H04R13/02—Telephone receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
DENDAT284792D Active DE284792C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE284792C true DE284792C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=540228

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT284792D Active DE284792C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE284792C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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