Legal status (The legal status 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 status listed.)
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 filedfiledCritical
Priority to JP7504075ApriorityCriticalpatent/JPS5245A/ja
Publication of JPS5245ApublicationCriticalpatent/JPS5245A/ja
Publication of JPS5630437B2publicationCriticalpatent/JPS5630437B2/ja
Specific Sealing Or Ventilating Devices For Doors And Windows
(AREA)
JP7504075A1975-06-211975-06-21Device for opening and closing blades for fume exhausting and fire-res isting damper or shutter and the like
GrantedJPS5245A
(en)
