FR630800A - Sound amplifiers for gramophones, loudspeakers and other sound reproducing devices - Google Patents

Sound amplifiers for gramophones, loudspeakers and other sound reproducing devices

Info

Publication number
FR630800A
FR630800A FR630800DA FR630800A FR 630800 A FR630800 A FR 630800A FR 630800D A FR630800D A FR 630800DA FR 630800 A FR630800 A FR 630800A
Authority
FR
France
Prior art keywords
sound
gramophones
loudspeakers
reproducing devices
amplifiers
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
Henry John Cullum
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 FR630800A publication Critical patent/FR630800A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR630800D 1926-05-31 1927-03-15 Sound amplifiers for gramophones, loudspeakers and other sound reproducing devices Expired FR630800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB630800X 1926-05-31

Publications (1)

Publication Number Publication Date
FR630800A true FR630800A (en) 1927-12-08

Family

ID=10488755

Family Applications (1)

Application Number Title Priority Date Filing Date
FR630800D Expired FR630800A (en) 1926-05-31 1927-03-15 Sound amplifiers for gramophones, loudspeakers and other sound reproducing devices

Country Status (1)

Country Link
FR (1) FR630800A (en)

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