FR491182A - Haut-parleur universel - Google Patents

Haut-parleur universel

Info

Publication number
FR491182A
FR491182A FR491182DA FR491182A FR 491182 A FR491182 A FR 491182A FR 491182D A FR491182D A FR 491182DA FR 491182 A FR491182 A FR 491182A
Authority
FR
France
Prior art keywords
universal speaker
speaker
universal
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
Alexandre Vaugean
John Rochat
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.)
JOHN ROCHAT
Original Assignee
JOHN ROCHAT
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 JOHN ROCHAT filed Critical JOHN ROCHAT
Application granted granted Critical
Publication of FR491182A publication Critical patent/FR491182A/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)
FR491182D 1915-05-15 1915-05-15 Haut-parleur universel Expired FR491182A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR491182T 1915-05-15

Publications (1)

Publication Number Publication Date
FR491182A true FR491182A (fr) 1919-05-24

Family

ID=1527213

Family Applications (1)

Application Number Title Priority Date Filing Date
FR491182D Expired FR491182A (fr) 1915-05-15 1915-05-15 Haut-parleur universel

Country Status (1)

Country Link
FR (1) FR491182A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968576C (de) * 1938-12-22 1958-03-06 Klangfilm Gmbh Lautsprecheranordnung zur UEbertragung stereoakustischer Darbietungen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE968576C (de) * 1938-12-22 1958-03-06 Klangfilm Gmbh Lautsprecheranordnung zur UEbertragung stereoakustischer Darbietungen

Similar Documents

Publication Publication Date Title
FR491182A (fr) Haut-parleur universel
FR526126A (fr) Support universel
FR480740A (fr) Corset-ceinture
FR480219A (fr) Riveuse
FR480089A (fr) Stéréo-classeur
FR478862A (fr) Hamac-couchette
CH73983A (de) Photogrammeter
CH71926A (de) Photogrammeter
CH72540A (fr) Joiont
FR478748A (fr) Joint universel
FR479959A (fr) Manchon universel
FR21035E (fr) Manchon universel
FR478470A (fr) Tachymètre
FR479580A (fr) Disposition de joint universel
FR478199A (fr) Étuve-séchoir
FR481468A (fr) Plansichter
FR480123A (fr) Patin-chaufferette
FR482011A (fr) Block-système
FR20906E (fr) Télémètre-hausse
FR20380E (fr) Corset-ceinture
FR479484A (fr) Briquet-obus
FI6079A (fi) Livräddningsapparat
FI6206A (fi) Kuberings-timmerklave
FI6073A (fi) Svavelugn
FI6028A (fi) Dubbelram