FR755576A - Improvements to sound signaling devices - Google Patents

Improvements to sound signaling devices

Info

Publication number
FR755576A
FR755576A FR755576DA FR755576A FR 755576 A FR755576 A FR 755576A FR 755576D A FR755576D A FR 755576DA FR 755576 A FR755576 A FR 755576A
Authority
FR
France
Prior art keywords
signaling devices
sound signaling
sound
devices
signaling
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.)
Delco Remy Corp
Original Assignee
Delco Remy Corp
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 Delco Remy Corp filed Critical Delco Remy Corp
Application granted granted Critical
Publication of FR755576A publication Critical patent/FR755576A/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
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
    • G10K9/15—Self-interrupting arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR755576D 1933-05-13 1933-05-13 Improvements to sound signaling devices Expired FR755576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR755576T 1933-05-13

Publications (1)

Publication Number Publication Date
FR755576A true FR755576A (en) 1933-11-27

Family

ID=9165124

Family Applications (1)

Application Number Title Priority Date Filing Date
FR755576D Expired FR755576A (en) 1933-05-13 1933-05-13 Improvements to sound signaling devices

Country Status (1)

Country Link
FR (1) FR755576A (en)

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