Patent classifications
E
FIXED CONSTRUCTIONS
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E05
LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
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E05B
LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
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63/00
Locks; or fastenings; with special structural characteristics
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E05B63/24
Arrangements in which the fastening members which engage one another are mounted respectively on the wing and the frame and are both movable, e.g. for release by moving either of them
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E05B63/242
Auxiliary bolts on the frame, actuated by bolts on the wing, or vice versa
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