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PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H01J 27/022

Full Title

Ion beam tubes (H01J25/00, H01J33/00, H01J37/00 take precedence; particle accelerators H05H) > Ion sources; Ion guns

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.