NL66851C - - Google Patents

Info

Publication number
NL66851C
NL66851C NL66851DA NL66851C NL 66851 C NL66851 C NL 66851C NL 66851D A NL66851D A NL 66851DA NL 66851 C NL66851 C NL 66851C
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 NL66851C publication Critical patent/NL66851C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
NL66851D 1941-02-06 NL66851C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE879079X 1941-02-06

Publications (1)

Publication Number Publication Date
NL66851C true NL66851C (enrdf_load_stackoverflow)

Family

ID=6818836

Family Applications (1)

Application Number Title Priority Date Filing Date
NL66851D NL66851C (enrdf_load_stackoverflow) 1941-02-06

Country Status (2)

Country Link
FR (1) FR879079A (enrdf_load_stackoverflow)
NL (1) NL66851C (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034691B (de) * 1957-03-25 1958-07-24 Siemens Ag Lautsprecheranlage mit einseitig gerichteten Lautsprechern

Also Published As

Publication number Publication date
FR879079A (fr) 1943-02-12

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