- Metal powders, pastes, and flakes (9)
- Iron, powdered (2)
- Paste, metal (1)
- Powder, metal (11)
- Silver powder (2)
- Metal fasteners (3)
- Brads: aluminum, brass, or other nonferrous metal or wire (2)
- Nails: aluminum, brass, or other nonferrous metal or wire (1)
- Staples, nonferrous metal or wire (2)
- Iron ore recovery from open hearth slag (1)
- Laminating steel (9)
- Reclaiming ferrous metals from clay (1)
- Steel balls (1)
- Cryogenic treatment of metal (2)
