CH21824A - Mouth whistle for signals - Google Patents

Mouth whistle for signals

Info

Publication number
CH21824A
CH21824A CH21824A CH21824DA CH21824A CH 21824 A CH21824 A CH 21824A CH 21824 A CH21824 A CH 21824A CH 21824D A CH21824D A CH 21824DA CH 21824 A CH21824 A CH 21824A
Authority
CH
Switzerland
Prior art keywords
signals
mouth whistle
whistle
mouth
Prior art date
Application number
CH21824A
Other languages
French (fr)
Inventor
Freres Kaufmann
Original Assignee
Freres Kaufmann
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 Freres Kaufmann filed Critical Freres Kaufmann
Publication of CH21824A publication Critical patent/CH21824A/en

Links

CH21824A 1900-06-29 1900-06-29 Mouth whistle for signals CH21824A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH21824T 1900-06-29

Publications (1)

Publication Number Publication Date
CH21824A true CH21824A (en) 1901-09-30

Family

ID=4227793

Family Applications (1)

Application Number Title Priority Date Filing Date
CH21824A CH21824A (en) 1900-06-29 1900-06-29 Mouth whistle for signals

Country Status (1)

Country Link
CH (1) CH21824A (en)

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