USPC Class Details

Description: 347 incremental printing of symbolic information / 347 incremental printing of symbolic information/(111) electric marking apparatus or processes (112) electrostatic (120) by information carrying flow of invisible charged particles (121) electron beam generator with air tight envelope

Hierarchy/Derived subclasses

347 / 111

-> 112

-> 120

-> 121

-> 122

uspto searches

Patent Apps in 347/121

Granted Patents in 347/121

Use the links above or do an advanced search in ppubs for:
(347/121.ccls. or 347/122.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.

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