DIFF Subgroup
G02B 21/10 affording dark-field illumination (G02B21/14 take precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: affording dark-field illumination
CPC: affording dark-field illumination (G02B21/14 take precedence)
Full Title
Full titles differ between systems:
IPC:
Microscopes > Means for illuminating specimen > Condensers > affording dark-field illumination
CPC:
Microscopes > Means for illuminating specimens > Condensers > affording dark-field illumination (G02B21/14 take precedence)
No child classifications to compare. This is a leaf node in both IPC and CPC.