CH145584A - Signal listening device on closed road vehicles. - Google Patents

Signal listening device on closed road vehicles.

Info

Publication number
CH145584A
CH145584A CH145584DA CH145584A CH 145584 A CH145584 A CH 145584A CH 145584D A CH145584D A CH 145584DA CH 145584 A CH145584 A CH 145584A
Authority
CH
Switzerland
Prior art keywords
listening device
road vehicles
closed road
signal listening
signal
Prior art date
Application number
Other languages
German (de)
Inventor
Lerch Paul
Original Assignee
Lerch Paul
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 Lerch Paul filed Critical Lerch Paul
Publication of CH145584A publication Critical patent/CH145584A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
CH145584D 1930-01-15 1930-01-15 Signal listening device on closed road vehicles. CH145584A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH145584T 1930-01-15

Publications (1)

Publication Number Publication Date
CH145584A true CH145584A (en) 1931-02-28

Family

ID=4401825

Family Applications (1)

Application Number Title Priority Date Filing Date
CH145584D CH145584A (en) 1930-01-15 1930-01-15 Signal listening device on closed road vehicles.

Country Status (1)

Country Link
CH (1) CH145584A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3158835A (en) * 1961-07-14 1964-11-24 Otho F Hipkins Safety device signal pick-up for motor vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3158835A (en) * 1961-07-14 1964-11-24 Otho F Hipkins Safety device signal pick-up for motor vehicles

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