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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15/00
Suspension arrangements for wings
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E05D15/48
allowing alternative movements
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E05D15/50
for opening at either of two opposite edges
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E05D15/507
by detachment of the hinge from the wing or the frame
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