A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
INDICATOR LOCK
Disclosed herein are cylindrical door locks configured to indicate the lock status of the door lock to nearby persons. In some instances, the lock status is indicated on a first side of the door. In other instances, the lock status is indicated on both a first side and a second side of the door.
INDICATOR LOCK
Disclosed herein are cylindrical door locks configured to indicate the lock status of the door lock to nearby persons. In some instances, the lock status is indicated on a first side of the door. In other instances, the lock status is indicated on both a first side and a second side of the door.
INDICATOR LOCK
ASHCROFT PHILLIP (author) / FOURNIER BRIAN R (author) / GRISWOLD LEE (author) / VOELKER CHRISTINE (author)
2021-12-16
Patent
Electronic Resource
English
IPC:
E05B
LOCKS
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Schlösser