DIFF Subgroup
H01K 9/02 to provide substitution in the event of failure of one of the bodies
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Lamps having two or more incandescent bodies separately heated > to provide substitution in the event of failure of one of the bodies
CPC:
Lamps having two or more incandescent bodies separately heated (H01K11/00, H01K13/00 take precedence) > to provide substitution in the event of failure of one of the bodies
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
Navigate with arrow keys, Enter to open
- H01K 9/06 with built-in device, e.g. switch, for automatically completing circuit of reserve body IPC+CPC Available in IPC and CPC