Patent classifications
E
FIXED CONSTRUCTIONS
Load children
E05
LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
Load children
E05B
LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
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83/00
Vehicle locks specially adapted for particular types of wing or vehicle
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E05B83/01
Locks for military or armoured vehicles
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E05B83/01

EMERGENCY OPENING DEVICE FOR A CLOSURE
20250092733 · 2025-03-20 ·

Methods of emergency opening of manholes in emergency situations, devices and systems for their embodiment and methods of assembling devices for emergency opening of movable elements installed in manholes.