3820978

Information

• Patent Grant
• 3820978

• References
• Source

• Patent Number

  3,820,978

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • F27D1/1684 - by a special coating applied to the lining
  • F27B3/12 - Working chambers or casings Supports therefor
  • F27B14/061 - Induction furnaces
  • F27D2001/1689 - obtained from materials added to the melt

• US Classifications

  • 075 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 501 - Compositions: ceramic