DIFF Subgroup
G03B 19/14 with paired lenses, one of which forms image on photographic material and the other forms a corresponding image on a focusing screen
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Cameras > Still-picture cameras > with paired lenses, one of which forms image on photographic material and the other forms a corresponding image on a focusing screen
CPC:
Cameras (details G03B17/00) > Still-picture cameras > with paired lenses, one of which forms image on photographic material and the other forms a corresponding image on a focusing screen
No child classifications to compare. This is a leaf node in both IPC and CPC.