DIFF Subgroup
F23Q 2/16 Lighters with gaseous fuel, e.g. the gas being stored in liquid phase
Introduced: September 1968
Full Title
Lighters containing fuel, e.g. for cigarettes > Lighters with gaseous fuel, e.g. the gas being stored in liquid phase
CPC subdivides this area 3x more granularly than IPC with 4 additional codes.
4 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
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