A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A door guard that prevents the passage of persons from one area to another is disclosed and described herein.
A door guard that prevents the passage of persons from one area to another is disclosed and described herein.
DOOR GUARD
DIXON DEBORAH K (author)
2020-03-12
Patent
Electronic Resource
English
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES