DIFF Subgroup
G02B 9/06 two + components
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – > having two components only > two + components
CPC:
Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - (G02B15/00 takes precedence) > having two components only > two + components
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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