IPC Subgroup
G03G 15/056 using internal polarisation
Introduced: July 1974
Last revised: January 2006
Full Title
Apparatus for electrographic processes using a charge pattern > using internal polarisation
Classification Context
- Section:
- PHYSICS
- Class:
- PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- Subclass:
- ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY