Cooperative Patent Classification


CPC to IPC Concordance for Subclass G21J

Printable Version [PDF] Version: 2018.05
CPC GroupIPC Group
    G21J 1/00        G21J 1/00     
    G21J 3/00        G21J 3/00     
    G21J 3/02        G21J 3/02     
    G21J 5/00        G21J 5/00