FR335666A - Warning or call device for the deaf - Google Patents

Warning or call device for the deaf

Info

Publication number
FR335666A
FR335666A FR335666DA FR335666A FR 335666 A FR335666 A FR 335666A FR 335666D A FR335666D A FR 335666DA FR 335666 A FR335666 A FR 335666A
Authority
FR
France
Prior art keywords
deaf
warning
call device
call
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
Albert Ekberg
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 FR335666A publication Critical patent/FR335666A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/24—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane
    • G08B5/28—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane with hinged flap or arm

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR335666D 1903-10-01 1903-10-01 Warning or call device for the deaf Expired FR335666A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR335666T 1903-10-01

Publications (1)

Publication Number Publication Date
FR335666A true FR335666A (en) 1904-02-05

Family

ID=1385127

Family Applications (1)

Application Number Title Priority Date Filing Date
FR335666D Expired FR335666A (en) 1903-10-01 1903-10-01 Warning or call device for the deaf

Country Status (1)

Country Link
FR (1) FR335666A (en)

Similar Documents

Publication Publication Date Title
FR335666A (en) Warning or call device for the deaf
FR369549A (en) Safety device for children's chairs
FR353099A (en) Coupling device for wagons
CH28622A (en) Device for establishing foundations
FR333032A (en) Shoe extension device
FR331412A (en) Window stop device
FR337226A (en) Stop device for centrifuges
FR359740A (en) Assembly device for scaffolding
FR2282E (en) Shoe extension device
FR353376A (en) Foot operated steering device for automobiles
FR357184A (en) Safety stop device for nut
FR336954A (en) Device to prevent horses from getting carried away
FR3505E (en) Stopping device for ships
FR334452A (en) Stopping device for ships
FR362545A (en) Device for eliminating or reducing the influence of disturbing currents on telephone circuits
FR5368E (en) Vehicle identity device
FR356257A (en) Vehicle identity device
FR329224A (en) Support device for the heart
FR358623A (en) Safety device for velocipeds
FR375286A (en) Device to prevent horses from getting carried away
FR399886A (en) Clamping device for elevator cables
FR406374A (en) Milliner's fitting device
FR346927A (en) Car coupling device
CH33198A (en) Suspension device for trousers
FR331358A (en) Attachment device for various animals