DIFF Subgroup
G04B 23/12 Alarm watches to be worn in pockets or on the wrist (giving signals by stimulating the skin G04B25/04)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Alarm watches to be worn in pockets or on the wrist
CPC: Alarm watches to be worn in pockets or on the wrist (giving signals by stimulating the skin G04B25/04)
Full Title
Full titles differ between systems:
IPC:
Arrangements producing acoustic signals at preselected times > Alarm clocks > Alarm watches to be worn in pockets or on the wrist
CPC:
Arrangements producing acoustic signals at preselected times > Alarm clocks > Alarm watches to be worn in pockets or on the wrist (giving signals by stimulating the skin G04B25/04)
No child classifications to compare. This is a leaf node in both IPC and CPC.