FR2640069B1 - Porte-voix et flan pour sa fabrication - Google Patents

Porte-voix et flan pour sa fabrication

Info

Publication number
FR2640069B1
FR2640069B1 FR8815917A FR8815917A FR2640069B1 FR 2640069 B1 FR2640069 B1 FR 2640069B1 FR 8815917 A FR8815917 A FR 8815917A FR 8815917 A FR8815917 A FR 8815917A FR 2640069 B1 FR2640069 B1 FR 2640069B1
Authority
FR
France
Prior art keywords
speaker
blank
manufacture
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 - Lifetime
Application number
FR8815917A
Other languages
English (en)
Other versions
FR2640069A1 (fr
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
Priority to FR8815917A priority Critical patent/FR2640069B1/fr
Priority to EP89403110A priority patent/EP0373981A1/fr
Priority to FR8914785A priority patent/FR2654540B2/fr
Publication of FR2640069A1 publication Critical patent/FR2640069A1/fr
Application granted granted Critical
Publication of FR2640069B1 publication Critical patent/FR2640069B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G10K11/08—Non-electric sound-amplifying devices, e.g. non-electric megaphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Adornments (AREA)
  • Toys (AREA)
FR8815917A 1988-12-05 1988-12-05 Porte-voix et flan pour sa fabrication Expired - Lifetime FR2640069B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8815917A FR2640069B1 (fr) 1988-12-05 1988-12-05 Porte-voix et flan pour sa fabrication
EP89403110A EP0373981A1 (fr) 1988-12-05 1989-11-10 Porte-voix et flan pour sa fabrication
FR8914785A FR2654540B2 (fr) 1988-12-05 1989-11-10 Porte-voix et flan pour sa fabrication.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8815917A FR2640069B1 (fr) 1988-12-05 1988-12-05 Porte-voix et flan pour sa fabrication

Publications (2)

Publication Number Publication Date
FR2640069A1 FR2640069A1 (fr) 1990-06-08
FR2640069B1 true FR2640069B1 (fr) 1991-10-25

Family

ID=9372580

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8815917A Expired - Lifetime FR2640069B1 (fr) 1988-12-05 1988-12-05 Porte-voix et flan pour sa fabrication

Country Status (2)

Country Link
EP (1) EP0373981A1 (fr)
FR (1) FR2640069B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2777108B1 (fr) * 1998-03-27 2002-08-30 Jerome Faure Porte-voix a usage multiple, pouvant etre utilise comme support de communication, ainsi qu'un exemple de developpe destine a sa fabrication
FR2801409A1 (fr) * 1999-11-18 2001-05-25 Nicolas Duloz Dispositif de communication multi-usage pour manifestations sportives et culturelles

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1332789A (en) * 1919-04-18 1920-03-02 George K Asano Combination fan, score-card, and megaphone
FR526596A (fr) * 1920-09-09 1921-10-11 Signal Gmbh Dispositif pour installations à tuyaux acoustiques
US1541122A (en) * 1922-08-21 1925-06-09 Charles H Dodge Megaphone
DE561092C (de) * 1930-04-10 1932-10-10 Carl Ludwig Fortner Gehaeuse fuer Lautsprecher
US2346818A (en) * 1941-10-03 1944-04-18 Robert A Brown Megaphone
US2517665A (en) * 1947-09-13 1950-08-08 Irving Schwartz Megaphone formed of bendable material
US4613012A (en) * 1985-04-29 1986-09-23 The Little Screamer Group Limited Article of rolled form
AU562339B2 (en) * 1986-11-19 1987-06-30 Chornyj John Megaphone blank

Also Published As

Publication number Publication date
FR2640069A1 (fr) 1990-06-08
EP0373981A1 (fr) 1990-06-20

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Legal Events

Date Code Title Description
ST Notification of lapse