FR2654540B2 - Porte-voix et flan pour sa fabrication. - Google Patents

Porte-voix et flan pour sa fabrication.

Info

Publication number
FR2654540B2
FR2654540B2 FR8914785A FR8914785A FR2654540B2 FR 2654540 B2 FR2654540 B2 FR 2654540B2 FR 8914785 A FR8914785 A FR 8914785A FR 8914785 A FR8914785 A FR 8914785A FR 2654540 B2 FR2654540 B2 FR 2654540B2
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
FR8914785A
Other languages
English (en)
Other versions
FR2654540A2 (fr
Inventor
Thevenet Claudy
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
Priority claimed from FR8815917A external-priority patent/FR2640069B1/fr
Application filed by Individual filed Critical Individual
Priority to FR8914785A priority Critical patent/FR2654540B2/fr
Publication of FR2654540A2 publication Critical patent/FR2654540A2/fr
Application granted granted Critical
Publication of FR2654540B2 publication Critical patent/FR2654540B2/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)
  • Vibration Dampers (AREA)
FR8914785A 1988-12-05 1989-11-10 Porte-voix et flan pour sa fabrication. Expired - Lifetime FR2654540B2 (fr)

Priority Applications (1)

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

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
FR2654540A2 FR2654540A2 (fr) 1991-05-17
FR2654540B2 true FR2654540B2 (fr) 1992-02-28

Family

ID=26227031

Family Applications (1)

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

Country Status (1)

Country Link
FR (1) FR2654540B2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090114474A1 (en) * 2007-11-06 2009-05-07 Scott David Morgan Megaphone sign for use at events

Also Published As

Publication number Publication date
FR2654540A2 (fr) 1991-05-17

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