Liquid filters (G02B5/23 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Liquid filters

CPC: Liquid filters (G02B5/23 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Optical elements other than lenses > Filters > Absorbing filters > Liquid filters

CPC:

Optical elements other than lenses (light guides G02B6/00; optical logic elements G02F3/00) > Filters (polarising elements G02B5/30) > Absorbing filters > Liquid filters (G02B5/23 takes precedence)

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