NL28231C - - Google Patents

Info

Publication number
NL28231C
NL28231C NL28231DA NL28231C NL 28231 C NL28231 C NL 28231C NL 28231D A NL28231D A NL 28231DA NL 28231 C NL28231 C NL 28231C
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 NL28231C publication Critical patent/NL28231C/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
    • H04R19/00—Electrostatic transducers
    • H04R19/02—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Circuit For Audible Band Transducer (AREA)
NL28231D 1927-04-28 NL28231C (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE289472X 1927-04-28

Publications (1)

Publication Number Publication Date
NL28231C true NL28231C (enrdf_load_html_response)

Family

ID=6059837

Family Applications (1)

Application Number Title Priority Date Filing Date
NL28231D NL28231C (enrdf_load_html_response) 1927-04-28

Country Status (4)

Country Link
US (1) US1737872A (enrdf_load_html_response)
FR (1) FR653356A (enrdf_load_html_response)
GB (1) GB289472A (enrdf_load_html_response)
NL (1) NL28231C (enrdf_load_html_response)

Also Published As

Publication number Publication date
GB289472A (en) 1929-06-06
FR653356A (fr) 1929-03-20
US1737872A (en) 1929-12-03

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