BR7304315D0 - Busina - Google Patents

Busina

Info

Publication number
BR7304315D0
BR7304315D0 BR4315/73A BR431573A BR7304315D0 BR 7304315 D0 BR7304315 D0 BR 7304315D0 BR 4315/73 A BR4315/73 A BR 4315/73A BR 431573 A BR431573 A BR 431573A BR 7304315 D0 BR7304315 D0 BR 7304315D0
Authority
BR
Brazil
Prior art keywords
busina
Prior art date
Application number
BR4315/73A
Other languages
English (en)
Portuguese (pt)
Inventor
E Hibell
Original Assignee
Lucas Electrical Co Ltd
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 Lucas Electrical Co Ltd filed Critical Lucas Electrical Co Ltd
Publication of BR7304315D0 publication Critical patent/BR7304315D0/pt

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)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Multiple-Way Valves (AREA)
BR4315/73A 1972-06-10 1973-06-08 Busina BR7304315D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2723072A GB1432363A (en) 1972-06-10 1972-06-10 Horns

Publications (1)

Publication Number Publication Date
BR7304315D0 true BR7304315D0 (pt) 1974-07-25

Family

ID=10256237

Family Applications (1)

Application Number Title Priority Date Filing Date
BR4315/73A BR7304315D0 (pt) 1972-06-10 1973-06-08 Busina

Country Status (9)

Country Link
JP (1) JPS4951895A (es)
AU (1) AU5669473A (es)
BR (1) BR7304315D0 (es)
DE (1) DE2329849A1 (es)
ES (1) ES192261Y (es)
FR (1) FR2188901A5 (es)
GB (1) GB1432363A (es)
IT (1) IT986146B (es)
ZA (1) ZA733882B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5437496A (en) * 1977-08-27 1979-03-19 Lucas Industries Ltd Whistle flare
US4359961A (en) * 1979-10-22 1982-11-23 Seron Manufacturing Company Plastic whistle
US4664055A (en) * 1984-02-21 1987-05-12 Kobishi Electric Co., Ltd. Alarm horn
WO2015132855A1 (ja) * 2014-03-03 2015-09-11 Toa 株式会社 ホーンスピーカー及びホーンアレイスピーカー

Also Published As

Publication number Publication date
AU5669473A (en) 1974-12-12
JPS4951895A (es) 1974-05-20
IT986146B (it) 1975-01-20
ZA733882B (en) 1974-05-29
ES192261U (es) 1974-08-16
DE2329849A1 (de) 1973-12-20
ES192261Y (es) 1974-12-16
FR2188901A5 (es) 1974-01-18
GB1432363A (en) 1976-04-14

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