DIFF Subgroup
G03B 21/26 Projecting separately subsidiary matter simultaneously with main image
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Projectors or projection-type viewers; Accessories therefor > Details > Projecting separately subsidiary matter simultaneously with main image
CPC:
Projectors or projection-type viewers; Accessories therefor (devices for changing pictures G03B23/00) > Details > Projecting separately subsidiary matter simultaneously with main image
No child classifications to compare. This is a leaf node in both IPC and CPC.