E04D 2001/3444 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup Additional Only

E04D 2001/3444

Full Title

Roof covering by making use of tiles, slates, shingles, or other small roofing elements (roofing supports E04D12/00) > Fastenings for attaching roof-covering elements to the supporting elements

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Note: 2 CPC extensions are marked as secondary classification only.

This code exists only in CPC.

Diff view requires codes present in both systems.

View in CPC →