FR431881A - Signal électrique - Google Patents

Signal électrique

Info

Publication number
FR431881A
FR431881A FR431881DA FR431881A FR 431881 A FR431881 A FR 431881A FR 431881D A FR431881D A FR 431881DA FR 431881 A FR431881 A FR 431881A
Authority
FR
France
Prior art keywords
electrical signal
electrical
signal
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
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 FR431881A publication Critical patent/FR431881A/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)
FR431881D 1911-07-04 1911-07-04 Signal électrique Expired FR431881A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR431881T 1911-07-04

Publications (1)

Publication Number Publication Date
FR431881A true FR431881A (fr) 1911-11-22

Family

ID=1474015

Family Applications (1)

Application Number Title Priority Date Filing Date
FR431881D Expired FR431881A (fr) 1911-07-04 1911-07-04 Signal électrique

Country Status (1)

Country Link
FR (1) FR431881A (fr)

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