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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17/00
Accessories in connection with locks
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E05B17/14
Closures or guards for keyholes
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E05B17/142
with key-operated locks, e.g. padlocks
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