Closed observation window in civil air defense project

The utility model relates to the technical field of civil air defense engineering, in particular to a closed observation window in civil air defense engineering, which comprises a sealing window frame and a closed window, a window is arranged in the sealing window frame, an L-shaped groove is arrang...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WU HAIYAN, MAO LINGHUA, XU QIAOYAN, ZHENG SHIQIANG, WU XIAOCHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	COFFEE MILLS DOMESTIC ARTICLES OR APPLIANCES DOMESTIC WASHING OR CLEANING 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 FURNITURE HUMAN NECESSITIES LADDERS SPICE MILLS SUCTION CLEANERS IN GENERAL
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