FR391020A - Improvements to acoustic warning devices for passenger vehicles - Google Patents

Improvements to acoustic warning devices for passenger vehicles

Info

Publication number
FR391020A
FR391020A FR391020DA FR391020A FR 391020 A FR391020 A FR 391020A FR 391020D A FR391020D A FR 391020DA FR 391020 A FR391020 A FR 391020A
Authority
FR
France
Prior art keywords
passenger vehicles
warning devices
acoustic warning
acoustic
passenger
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
Elmor Randolph Carrington
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 FR391020A publication Critical patent/FR391020A/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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/22—Methods or devices for transmitting, conducting or directing sound for conducting sound through hollow pipes, e.g. speaking tubes

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR391020D 1908-06-06 1908-06-06 Improvements to acoustic warning devices for passenger vehicles Expired FR391020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR391020T 1908-06-06

Publications (1)

Publication Number Publication Date
FR391020A true FR391020A (en) 1908-10-21

Family

ID=1436507

Family Applications (1)

Application Number Title Priority Date Filing Date
FR391020D Expired FR391020A (en) 1908-06-06 1908-06-06 Improvements to acoustic warning devices for passenger vehicles

Country Status (1)

Country Link
FR (1) FR391020A (en)

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