FR627932A - Perfectionnements aux cornets avertisseurs - Google Patents

Perfectionnements aux cornets avertisseurs

Info

Publication number
FR627932A
FR627932A FR627932DA FR627932A FR 627932 A FR627932 A FR 627932A FR 627932D A FR627932D A FR 627932DA FR 627932 A FR627932 A FR 627932A
Authority
FR
France
Prior art keywords
horns
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)
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.)
EA Laboratories Inc
Original Assignee
EA Laboratories Inc
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 EA Laboratories Inc filed Critical EA Laboratories Inc
Application granted granted Critical
Publication of FR627932A publication Critical patent/FR627932A/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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR627932D 1927-01-24 1927-01-24 Perfectionnements aux cornets avertisseurs Expired FR627932A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR627932T 1927-01-24

Publications (1)

Publication Number Publication Date
FR627932A true FR627932A (fr) 1927-10-15

Family

ID=8989341

Family Applications (1)

Application Number Title Priority Date Filing Date
FR627932D Expired FR627932A (fr) 1927-01-24 1927-01-24 Perfectionnements aux cornets avertisseurs

Country Status (1)

Country Link
FR (1) FR627932A (fr)

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