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
Authority: CH; Switzerland
Prior art keywords: windows; ventilation; closing; periodic opening; automatic periodic
Prior art date: 1890-02-25

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.)

1890-02-25

Filing date

1890-02-25

Publication date

1890-10-15

1890-02-25 Application filed by L Karrer filed Critical L Karrer

1890-10-15 Publication of CH1946A publication Critical patent/CH1946A/en

Links

230000000737 periodic effect Effects 0.000 title 1
238000009423 ventilation Methods 0.000 title 1

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)

1890
- 1890-02-25 CH CH1946A patent/CH1946A/en unknown

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