By Pulling Workpiece Through Closed Periphery Die (e.g., Rod-, Tube-, Or Wire-drawing) Patents (Class 72/274)
- Varying speed of continuous workpiece through successive tool stations (Class 72/279)
- Accumulating work between successive tool stations (Class 72/280)
- Including non-coaxial closed dies (Class 72/281)
- All closed dies coaxially aligned (Class 72/282)
- Including a mandrel inserted within a hollow workpiece (Class 72/283)