CH1946A - Apparatus for the automatic periodic opening and closing of windows and the like, e.g. B. for ventilation - Google Patents

Apparatus for the automatic periodic opening and closing of windows and the like, e.g. B. for ventilation

Info

Publication number
CH1946A
CH1946A CH1946A CH1946DA CH1946A CH 1946 A CH1946 A CH 1946A CH 1946 A CH1946 A CH 1946A CH 1946D A CH1946D A CH 1946DA CH 1946 A CH1946 A CH 1946A
Authority
CH
Switzerland
Prior art keywords
windows
ventilation
closing
periodic opening
automatic periodic
Prior art date
Application number
CH1946A
Other languages
German (de)
Inventor
L Karrer
Original Assignee
L Karrer
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 L Karrer filed Critical L Karrer
Publication of CH1946A publication Critical patent/CH1946A/en

Links

CH1946A 1890-02-25 1890-02-25 Apparatus for the automatic periodic opening and closing of windows and the like, e.g. B. for ventilation CH1946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1946T 1890-02-25

Publications (1)

Publication Number Publication Date
CH1946A true CH1946A (en) 1890-10-15

Family

ID=4181388

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1946A CH1946A (en) 1890-02-25 1890-02-25 Apparatus for the automatic periodic opening and closing of windows and the like, e.g. B. for ventilation

Country Status (1)

Country Link
CH (1) CH1946A (en)

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