BE368564R - Loudspeaker enhancements - Google Patents

Loudspeaker enhancements

Info

Publication number
BE368564R
BE368564R BE368564A BE368564A BE368564R BE 368564 R BE368564 R BE 368564R BE 368564 A BE368564 A BE 368564A BE 368564 A BE368564 A BE 368564A BE 368564 R BE368564 R BE 368564R
Authority
BE
Belgium
Prior art keywords
enhancements
loudspeaker
loudspeaker enhancements
Prior art date
Application number
BE368564A
Other languages
French (fr)
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.)
Filing date
Publication date
Priority claimed from US154814A external-priority patent/US1713210A/en
Priority claimed from US164620A external-priority patent/US1689513A/en
Priority claimed from US347060A external-priority patent/US1814798A/en
Application filed filed Critical
Application granted granted Critical
Publication of BE368564R publication Critical patent/BE368564R/en

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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
BE368564A 1926-12-14 1930-03-19 Loudspeaker enhancements BE368564R (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US154814A US1713210A (en) 1926-12-14 1926-12-14 Cone-type loud-speaker
US164620A US1689513A (en) 1927-01-29 1927-01-29 Sound-reproducing device
US347060A US1814798A (en) 1929-03-14 1929-03-14 Apparatus for producing sound

Publications (1)

Publication Number Publication Date
BE368564R true BE368564R (en) 1930-04-30

Family

ID=27387646

Family Applications (1)

Application Number Title Priority Date Filing Date
BE368564A BE368564R (en) 1926-12-14 1930-03-19 Loudspeaker enhancements

Country Status (1)

Country Link
BE (1) BE368564R (en)

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