142811 ⎘
Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups - ; Scoop devices of endless-chain type, e.g. with the chains carrying pistons co-operating with open-ended cylinders
Solid particulate pump
#2Multiple-fluid injection pump
#3Solid particulate pump having flexible seal
#4Singlestage and multistage electromagnetic revolutionary piston pump
#5Vertical water pumping system