Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup Additional Only
H01J 2237/20

Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated

Full Title

Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging > Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated

Of 10 combined children, 0 exist in both systems.

10 codes are CPC-only extensions.

Note: 10 CPC extensions are marked as secondary classification only.