E04G 21/142 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

E04G 21/142

Full Title

Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work (conveying in general B65G; lifting devices B66; working stone-like materials B28D; measuring instruments G01) > Conveying or assembling building elements (roofing E04D; finishing work E04F)

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.

View in CPC →