E21C 41/32 Reclamation of surface-mined areas (machines or methods for treating or working soil for agricultural purposes A01B77/00, A01B79/00; machines for back-filling E02F5/22)
Introduced: January 1990
Title
Titles differ between systems:
IPC: Reclamation of surface-mined areas
CPC: Reclamation of surface-mined areas (machines or methods for treating or working soil for agricultural purposes A01B77/00, A01B79/00; machines for back-filling E02F5/22)
Full Title
Full titles differ between systems:
Methods of underground or surface mining; Layouts therefor > Reclamation of surface-mined areas
Methods of underground or surface mining (E21C45/00 takes precedence); Layouts therefor (for peat E21C49/00) > Reclamation of surface-mined areas (machines or methods for treating or working soil for agricultural purposes A01B77/00, A01B79/00; machines for back-filling E02F5/22)
No child classifications to compare. This is a leaf node in both IPC and CPC.