Top IPC subclasses
1
|
G03G
|
3
|
Electrography; electrophotography; magnetography
|
2
|
C09B
|
1
|
organic dyes or closely-related compounds for producing dyesmordantslakes
|
3
|
C08F
|
1
|
macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
|
4
|
G03C
|
1
|
photosensitive materials for photographic purposesphotographic processes, e.g. cine, x-ray, colour,
|