Concealed ventilation entrance door

The utility model discloses a hidden ventilation entrance door, which relates to the technical field of building materials, and comprises a door body, an outer window is arranged on the outer side surface of the door body, an inner window is arranged on the inner side surface of the door body, the i...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	QI YUANSEN, WANG LIJUAN, QI YUNLING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES THEREFOR DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL FIXED CONSTRUCTIONS FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES HANDCUFFS KEYS LADDERS LOCKS SAFES WINDOW OR DOOR FITTINGS
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