specially adapted for raising liquids from great depths, e.g. in wells

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped > the fluid medium acting on the surface of the liquid to be pumped > specially adapted for raising liquids from great depths, e.g. in wells

CPC:

Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped (using only negative pressure F04F3/00; jet pumps F04F5/00; siphons F04F10/00) > the fluid medium acting on the surface of the liquid to be pumped (F04F1/02 takes precedence) > specially adapted for raising liquids from great depths, e.g. in wells

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