FR740135A - Polysonic signal device, especially for cars - Google Patents

Polysonic signal device, especially for cars

Info

Publication number
FR740135A
FR740135A FR740135DA FR740135A FR 740135 A FR740135 A FR 740135A FR 740135D A FR740135D A FR 740135DA FR 740135 A FR740135 A FR 740135A
Authority
FR
France
Prior art keywords
polysonic
cars
signal device
signal
polysonic 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
French (fr)
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.)
Robert Bosch AG
Robert Bosch GmbH
Original Assignee
Robert Bosch AG
Robert Bosch GmbH
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 Robert Bosch AG, Robert Bosch GmbH filed Critical Robert Bosch AG
Application granted granted Critical
Publication of FR740135A publication Critical patent/FR740135A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
FR740135D 1931-08-03 1932-07-20 Polysonic signal device, especially for cars Expired FR740135A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE740135X 1931-08-03

Publications (1)

Publication Number Publication Date
FR740135A true FR740135A (en) 1933-01-21

Family

ID=6643334

Family Applications (1)

Application Number Title Priority Date Filing Date
FR740135D Expired FR740135A (en) 1931-08-03 1932-07-20 Polysonic signal device, especially for cars

Country Status (1)

Country Link
FR (1) FR740135A (en)

Similar Documents

Publication Publication Date Title
FR713819A (en) Braking device
FR773923A (en) Braking device for vehicles
FR740135A (en) Polysonic signal device, especially for cars
FR720097A (en) Safety device for steps
FR695769A (en) Braking device for vehicles
FR720976A (en) Suspension device for vehicles
FR709181A (en) Handling device for vehicles
FR41098E (en) Acoustic warning device, especially for vehicles
FR722356A (en) Anti-rollback device for vehicles
FR726208A (en) Receiving device for television
FR730631A (en) Adjustment device for railcars
FR718676A (en) Device for the selective formation of any subtotals
FR589723A (en) Mooring device for airships
FR705129A (en) Gearshift-declutching device for motorcycles
FR734641A (en) Coupling, especially for railway signal installations
FR719602A (en) Anti-theft device for automobiles
FR28926E (en) Receiver device for television
FR718310A (en) Vehicle brakes device
FR704060A (en) Recording device for cars
FR725726A (en) Servo brake device for vehicles
FR726681A (en) Direction indicator, especially for cars
FR713239A (en) Paratelescopic device for all types of cars
DK47165C (en) Signal device for railway crossings.
FR739540A (en) Indicator device for automobiles
FR728662A (en) Indicator housing, especially for cars