Patent classifications
E
FIXED CONSTRUCTIONS
Load children
E05
LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
Load children
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
Load children
3/00
Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
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E05F3/04
with liquid piston brakes
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E05F3/12
Special devices controlling the circulation of the liquid, e.g. valve arrangement
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