DIFF Subgroup
E21F 15/04 Stowing mats; Goaf wire netting; Partition walls
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Methods or devices for placing filling-up materials in underground workings > Supporting means, e.g. shuttering, for filling-up materials > Stowing mats; Goaf wire netting; Partition walls
CPC:
Methods or devices for placing filling-up materials in underground workings (dams E21F17/103 ) > Supporting means, e.g. shuttering, for filling-up materials > Stowing mats; Goaf wire netting; Partition walls
No child classifications to compare. This is a leaf node in both IPC and CPC.