FR403982A - Acoustic horn - Google Patents

Acoustic horn

Info

Publication number
FR403982A
FR403982A FR403982DA FR403982A FR 403982 A FR403982 A FR 403982A FR 403982D A FR403982D A FR 403982DA FR 403982 A FR403982 A FR 403982A
Authority
FR
France
Prior art keywords
acoustic horn
horn
acoustic
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
Charles Gall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Application granted granted Critical
Publication of FR403982A publication Critical patent/FR403982A/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
    • 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
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR403982D 1909-06-12 1909-06-12 Acoustic horn Expired FR403982A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR403982T 1909-06-12

Publications (1)

Publication Number Publication Date
FR403982A true FR403982A (en) 1909-11-19

Family

ID=1448581

Family Applications (1)

Application Number Title Priority Date Filing Date
FR403982D Expired FR403982A (en) 1909-06-12 1909-06-12 Acoustic horn

Country Status (1)

Country Link
FR (1) FR403982A (en)

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