G04D 3/0074 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

G04D 3/0074

Full Title

Watchmakers' or watch-repairers' machines or tools for working materials

Of 7 combined children, 0 exist in both systems.

7 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.