DEVICE FOR PROTECTION OF WINDOW OR DOOR OPENINGS Russian patent published in 1994 - IPC

Abstract RU 2017920 C1

FIELD: construction. SUBSTANCE: when internal wing 1 is opened, lever 5 engaging bearing member 3 is released and external guard 2 is freely opened to enable free leaving of room. EFFECT: higher efficiency. 4 cl, 1 dwg

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RU 2 017 920 C1

Authors

Belkovskij Nikolaj Grigor'Evich

Dates

1994-08-15—Published

1992-03-10—Filed