for shaping screw-propellers, turbine blades, or impellers

Full Title

Milling particular work; Special milling operations; Machines therefor > Working surfaces curved in two directions > for shaping screw-propellers, turbine blades, or impellers

Classification Context

Section:

PERFORMING OPERATIONS; TRANSPORTING

Class:

MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR

Subclass:

MILLING