CH83455A - Multi-part ventilation flap - Google Patents

Multi-part ventilation flap

Info

Publication number
CH83455A
CH83455A CH83455A CH83455DA CH83455A CH 83455 A CH83455 A CH 83455A CH 83455 A CH83455 A CH 83455A CH 83455D A CH83455D A CH 83455DA CH 83455 A CH83455 A CH 83455A
Authority
CH
Switzerland
Prior art keywords
ventilation flap
part ventilation
flap
ventilation
Prior art date
Application number
CH83455A
Other languages
German (de)
Inventor
Otto Hahn
Original Assignee
Otto Hahn
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 Otto Hahn filed Critical Otto Hahn
Publication of CH83455A publication Critical patent/CH83455A/en

Links

CH83455A 1919-03-08 1919-03-08 Multi-part ventilation flap CH83455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH83455T 1919-03-08

Publications (1)

Publication Number Publication Date
CH83455A true CH83455A (en) 1919-12-01

Family

ID=4338892

Family Applications (1)

Application Number Title Priority Date Filing Date
CH83455A CH83455A (en) 1919-03-08 1919-03-08 Multi-part ventilation flap

Country Status (1)

Country Link
CH (1) CH83455A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4328677A1 (en) * 1993-03-16 1994-09-22 Krapf & Lex Nachf Verkehrstech Closure device for an air passage (II)
DE102006053208A1 (en) * 2006-11-11 2008-05-15 Naber Holding Gmbh & Co. Kg Wall sleeve for ventilating room i.e. kitchen, has cover lid movable between closing and open positions and driven by pressure difference between air pressure in ventilation pipe and external environment air

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4328677A1 (en) * 1993-03-16 1994-09-22 Krapf & Lex Nachf Verkehrstech Closure device for an air passage (II)
DE102006053208A1 (en) * 2006-11-11 2008-05-15 Naber Holding Gmbh & Co. Kg Wall sleeve for ventilating room i.e. kitchen, has cover lid movable between closing and open positions and driven by pressure difference between air pressure in ventilation pipe and external environment air
DE102006053208B4 (en) * 2006-11-11 2009-09-03 Naber Holding Gmbh & Co. Kg wall box
US8721410B2 (en) 2006-11-11 2014-05-13 Naber Holding Gmbh & Co. Kg Wall sleeve

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