CPC Subgroup
G03G 13/056 using internal polarisation
Full Title
Electrographic processes using a charge pattern (G03G15/00, G03G16/00, G03G17/00 take precedence) > using internal polarisation
G03G 13/056 Electrographic processes using a charge pattern (G03G15/00, G03G16/00, G03G17/00 take precedence) > using internal polarisation