F21V 37/0004 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

F21V 37/0004

Full Title

Details of lighting devices employing combustion as light source, not otherwise provided for

Of 5 combined children, 0 exist in both systems.

5 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.