Patent classifications
E
FIXED CONSTRUCTIONS
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E05
LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
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E05D
HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
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11/00
Additional features or accessories of hinges
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E05D11/10
Devices for preventing movement between relatively-movable hinge parts
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E05D11/1028
for maintaining the hinge in two or more positions, e.g. intermediate or fully open
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E05D11/105
the maintaining means acting perpendicularly to the pivot axis
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E05D11/1064
with a coil spring perpendicular to the pivot axis
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