FR681001A - Haut-parleur - Google Patents

Haut-parleur

Info

Publication number
FR681001A
FR681001A FR681001DA FR681001A FR 681001 A FR681001 A FR 681001A FR 681001D A FR681001D A FR 681001DA FR 681001 A FR681001 A FR 681001A
Authority
FR
France
Prior art keywords
loud speaker
loud
speaker
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
English (en)
Inventor
Virgilio Pinzi
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 FR681001A publication Critical patent/FR681001A/fr
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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR681001D 1929-08-30 1929-08-30 Haut-parleur Expired FR681001A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR681001T 1929-08-30

Publications (1)

Publication Number Publication Date
FR681001A true FR681001A (fr) 1930-05-08

Family

ID=9022582

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681001D Expired FR681001A (fr) 1929-08-30 1929-08-30 Haut-parleur

Country Status (1)

Country Link
FR (1) FR681001A (fr)

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