FR704108A - Acoustic warning device, especially for vehicles - Google Patents

Acoustic warning device, especially for vehicles

Info

Publication number
FR704108A
FR704108A FR704108DA FR704108A FR 704108 A FR704108 A FR 704108A FR 704108D A FR704108D A FR 704108DA FR 704108 A FR704108 A FR 704108A
Authority
FR
France
Prior art keywords
vehicles
warning device
acoustic warning
acoustic
warning
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
French (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.)
Robert Bosch AG
Robert Bosch GmbH
Original Assignee
Robert Bosch AG
Robert Bosch GmbH
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 Robert Bosch AG, Robert Bosch GmbH filed Critical Robert Bosch AG
Application granted granted Critical
Publication of FR704108A publication Critical patent/FR704108A/en
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
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/22—Mountings; Casings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR704108D 1929-11-08 1930-10-14 Acoustic warning device, especially for vehicles Expired FR704108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE704108X 1929-11-08

Publications (1)

Publication Number Publication Date
FR704108A true FR704108A (en) 1931-05-13

Family

ID=6615527

Family Applications (1)

Application Number Title Priority Date Filing Date
FR704108D Expired FR704108A (en) 1929-11-08 1930-10-14 Acoustic warning device, especially for vehicles

Country Status (1)

Country Link
FR (1) FR704108A (en)

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