CPC Subgroup
G03G 13/054 using X-rays, e.g. electroradiography
Full Title
Electrographic processes using a charge pattern (G03G15/00, G03G16/00, G03G17/00 take precedence) > using X-rays, e.g. electroradiography
G03G 13/054 Electrographic processes using a charge pattern (G03G15/00, G03G16/00, G03G17/00 take precedence) > using X-rays, e.g. electroradiography