DIFF Subgroup
G02B 21/14 affording illumination for phase-contrast observation
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Microscopes > Means for illuminating specimen > Condensers > affording illumination for phase-contrast observation
CPC:
Microscopes > Means for illuminating specimens > Condensers > affording illumination for phase-contrast observation
No child classifications to compare. This is a leaf node in both IPC and CPC.