IPC Subgroup
E05B 19/22 Keys with devices for indicating whether the last operation was locking or unlocking
Introduced: September 1968
Last revised: January 2006
Full Title
Keys; Accessories therefor > Keys with devices for indicating whether the last operation was locking or unlocking
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- Subclass:
- LOCKS; ACCESSORIES THEREFOR; HANDCUFFS