Physical Type Apparatus Patents (Class 422/243)
- Crucible-free zone refiner (Class 422/250.1)
- Including means separating and conveying crystals to a melting zone (Class 422/251)
- Hydraulic classifier with crystallizer (Class 422/252)
- Including feed compartment for introducing nutrient (Class 422/253)
- Movable crystallizer or scraping means (Class 422/254)