FR449574A - Avertisseur électrique - Google Patents

Avertisseur électrique

Info

Publication number
FR449574A
FR449574A FR449574DA FR449574A FR 449574 A FR449574 A FR 449574A FR 449574D A FR449574D A FR 449574DA FR 449574 A FR449574 A FR 449574A
Authority
FR
France
Prior art keywords
electric horn
horn
electric
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)
Inventor
Theodore Weiss
Theodore Adam Walther
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
Application granted granted Critical
Publication of FR449574A publication Critical patent/FR449574A/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
    • G10K9/10—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers driven by mechanical means only

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR449574D 1911-10-21 1912-10-18 Avertisseur électrique Expired FR449574A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US449574XA 1911-10-21 1911-10-21

Publications (1)

Publication Number Publication Date
FR449574A true FR449574A (fr) 1913-03-03

Family

ID=1490086

Family Applications (1)

Application Number Title Priority Date Filing Date
FR449574D Expired FR449574A (fr) 1911-10-21 1912-10-18 Avertisseur électrique

Country Status (1)

Country Link
FR (1) FR449574A (fr)

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