AT184288B - Listening and knocking device - Google Patents

Listening and knocking device

Info

Publication number
AT184288B
AT184288B AT184288DA AT184288B AT 184288 B AT184288 B AT 184288B AT 184288D A AT184288D A AT 184288DA AT 184288 B AT184288 B AT 184288B
Authority
AT
Austria
Prior art keywords
listening
knocking device
knocking
Prior art date
Application number
Other languages
German (de)
Inventor
Carlo Cinquini
Original Assignee
Carlo Cinquini
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 Carlo Cinquini filed Critical Carlo Cinquini
Application granted granted Critical
Publication of AT184288B publication Critical patent/AT184288B/en

Links

AT184288D 1952-08-02 1953-07-28 Listening and knocking device AT184288B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT184288X 1952-08-02

Publications (1)

Publication Number Publication Date
AT184288B true AT184288B (en) 1956-01-10

Family

ID=11152881

Family Applications (1)

Application Number Title Priority Date Filing Date
AT184288D AT184288B (en) 1952-08-02 1953-07-28 Listening and knocking device

Country Status (1)

Country Link
AT (1) AT184288B (en)

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