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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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E05B
LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
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13/00
Devices preventing the key or the handle or both from being used
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E05B13/002
locking the handle
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E05B13/004
by locking the spindle, follower, or the like
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