DIFF Subgroup
G02B 13/26 for reproducing with unit magnification
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Optical objectives specially designed for the purposes specified below > for reproducing or copying at short object distances > for reproducing with unit magnification
CPC:
Optical objectives specially designed for the purposes specified below (with variable magnification G02B15/00) > for reproducing or copying at short object distances > for reproducing with unit magnification
No child classifications to compare. This is a leaf node in both IPC and CPC.