FR790962A - Microphone overtaking indicator device for vehicles - Google Patents

Microphone overtaking indicator device for vehicles

Info

Publication number
FR790962A
FR790962A FR790962DA FR790962A FR 790962 A FR790962 A FR 790962A FR 790962D A FR790962D A FR 790962DA FR 790962 A FR790962 A FR 790962A
Authority
FR
France
Prior art keywords
microphone
vehicles
indicator device
overtaking
overtaking indicator
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 FR790962A publication Critical patent/FR790962A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
    • G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR790962D 1934-06-28 1935-06-06 Microphone overtaking indicator device for vehicles Expired FR790962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE790962X 1934-06-28

Publications (1)

Publication Number Publication Date
FR790962A true FR790962A (en) 1935-11-30

Family

ID=1552712

Family Applications (1)

Application Number Title Priority Date Filing Date
FR790962D Expired FR790962A (en) 1934-06-28 1935-06-06 Microphone overtaking indicator device for vehicles

Country Status (1)

Country Link
FR (1) FR790962A (en)

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