two - components being compound

Introduced: September 1968

Title

Titles differ between systems:

IPC: two – components being compound

CPC: two - components being compound

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 four components only > arranged + –– + > both – components being meniscus > two – components being compound

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 four components only > arranged + -- + > both - components being meniscus > two - components being compound

No child classifications to compare. This is a leaf node in both IPC and CPC.