3678986

Information

• Patent Grant
• 3678986

• References
• Source

• Patent Number

  3,678,986

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1972
  52 years ago

• CPC

  • C30B13/26 - Stirring of the molten zone
  • C30B13/00 - Single-crystal growth by zone-melting Refining by zone-melting
  • C30B29/52 - Alloys

• US Classifications

  • 164 - Metal founding
  • 126 - Stoves and furnaces
  • 219 - Electric heating
  • 252 - Compositions
  • 373 - Industrial electric heating furnaces