whereby at least two steps are performed simultaneously

Full Title

Electrographic processes using a charge pattern > Processes involving the combination of more than one step according to groups > whereby at least two steps are performed simultaneously

Classification Context

Section:

PHYSICS

Class:

PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY

Subclass:

ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY