NL28789C - - Google Patents

Info

Publication number
NL28789C
NL28789C NL28789DA NL28789C NL 28789 C NL28789 C NL 28789C NL 28789D A NL28789D A NL 28789DA NL 28789 C NL28789 C NL 28789C
Authority
NL
Netherlands
Application number
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 NL28789C publication Critical patent/NL28789C/xx

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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
NL28789D 1929-05-19 NL28789C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB693435X 1929-05-19

Publications (1)

Publication Number Publication Date
NL28789C true NL28789C (enrdf_load_stackoverflow)

Family

ID=10493274

Family Applications (1)

Application Number Title Priority Date Filing Date
NL28789D NL28789C (enrdf_load_stackoverflow) 1929-05-19

Country Status (2)

Country Link
FR (1) FR693435A (enrdf_load_stackoverflow)
NL (1) NL28789C (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
FR693435A (fr) 1930-11-20

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