FR618038A - Improvements in apparatus for the transmission or reproduction of sound - Google Patents

Improvements in apparatus for the transmission or reproduction of sound

Info

Publication number
FR618038A
FR618038A FR618038DA FR618038A FR 618038 A FR618038 A FR 618038A FR 618038D A FR618038D A FR 618038DA FR 618038 A FR618038 A FR 618038A
Authority
FR
France
Prior art keywords
reproduction
sound
transmission
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Sidney George Brown
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
Application filed filed Critical
Application granted granted Critical
Publication of FR618038A publication Critical patent/FR618038A/en
Expired 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
    • 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)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR618038D 1925-09-19 1926-06-22 Improvements in apparatus for the transmission or reproduction of sound Expired FR618038A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2344125A GB261506A (en) 1925-09-19 1925-09-19 Improvements in and relating to apparatus for transmitting or reproducing sound

Publications (1)

Publication Number Publication Date
FR618038A true FR618038A (en) 1927-03-02

Family

ID=10195674

Family Applications (1)

Application Number Title Priority Date Filing Date
FR618038D Expired FR618038A (en) 1925-09-19 1926-06-22 Improvements in apparatus for the transmission or reproduction of sound

Country Status (2)

Country Link
FR (1) FR618038A (en)
GB (1) GB261506A (en)

Also Published As

Publication number Publication date
GB261506A (en) 1926-11-25

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