CH61639A - Device for opening and closing roof fans - Google Patents

Device for opening and closing roof fans

Info

Publication number
CH61639A
CH61639A CH61639A CH61639DA CH61639A CH 61639 A CH61639 A CH 61639A CH 61639 A CH61639 A CH 61639A CH 61639D A CH61639D A CH 61639DA CH 61639 A CH61639 A CH 61639A
Authority
CH
Switzerland
Prior art keywords
opening
closing roof
roof fans
fans
closing
Prior art date
Application number
CH61639A
Other languages
German (de)
Inventor
Aktien-Gesellschaft J A John
Original Assignee
J A John Aktien Ges
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 J A John Aktien Ges filed Critical J A John Aktien Ges
Publication of CH61639A publication Critical patent/CH61639A/en

Links

CH61639A 1912-07-01 1912-07-01 Device for opening and closing roof fans CH61639A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH61639T 1912-07-01

Publications (1)

Publication Number Publication Date
CH61639A true CH61639A (en) 1913-10-01

Family

ID=4305258

Family Applications (1)

Application Number Title Priority Date Filing Date
CH61639A CH61639A (en) 1912-07-01 1912-07-01 Device for opening and closing roof fans

Country Status (1)

Country Link
CH (1) CH61639A (en)

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