E04D 1/2907 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

E04D 1/2907

Full Title

Roof covering by making use of tiles, slates, shingles, or other small roofing elements (roofing supports E04D12/00)

Of 8 combined children, 0 exist in both systems.

8 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.