DIFF Subgroup
E05B 39/04 with counting or registering devices
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Locks giving indication of unauthorised unlocking > with counting or registering devices
CPC:
Locks giving indication of or unauthorised unlocking > with counting or registering devices
No child classifications to compare. This is a leaf node in both IPC and CPC.