1381689

Information

• Patent Grant
• 1381689

• References
• Source

• Patent Number

  1,381,689

• Date Filed

  Not available

• Date Issued

  Tuesday, June 14, 1921
  103 years ago

• CPC

  • C01B17/28 - with reducing gases
  • C22B5/00 - General methods of reducing to metals

• US Classifications

  • 075 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures