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Patent classifications
E
FIXED CONSTRUCTIONS
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E05
LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
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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
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5/00
Braking devices, e.g. checks; Stops; Buffers
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E05F5/06
Buffers; or stops limiting opening of swinging wings, e.g. floor or wall stops
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E05F5/08
with springs
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