Adaptations for drilling wells

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates > Adaptations for drilling wells

CPC:

Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus (if the apparatus aspects are predominant, see the relevant subclasses for such apparatus, e.g. H02K7/18); Power stations or aggregates (incorporating only machines or engines of positive-displacement type F03C; hydraulic engineering aspects E02B; ) > Adaptations for drilling wells

No child classifications to compare. This is a leaf node in both IPC and CPC.