FR430491A - Improvements to the tubes and other warning devices - Google Patents

Improvements to the tubes and other warning devices

Info

Publication number
FR430491A
FR430491A FR430491DA FR430491A FR 430491 A FR430491 A FR 430491A FR 430491D A FR430491D A FR 430491DA FR 430491 A FR430491 A FR 430491A
Authority
FR
France
Prior art keywords
tubes
warning devices
warning
devices
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)
Inventor
Miller Reese Hutchison
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 FR430491A publication Critical patent/FR430491A/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
    • G10K9/10—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)
FR430491D 1911-05-02 1911-05-02 Improvements to the tubes and other warning devices Expired FR430491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR430491T 1911-05-02

Publications (1)

Publication Number Publication Date
FR430491A true FR430491A (en) 1911-10-17

Family

ID=1472727

Family Applications (1)

Application Number Title Priority Date Filing Date
FR430491D Expired FR430491A (en) 1911-05-02 1911-05-02 Improvements to the tubes and other warning devices

Country Status (1)

Country Link
FR (1) FR430491A (en)

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