3689375

Information

• Patent Grant
• 3689375

• References
• Source

• Patent Number

  3,689,375

• Date Filed

  Not available

• Date Issued

  Tuesday, September 5, 1972
  52 years ago

• CPC

  • G10H5/04 - with semiconductor devices as active elements
  • B01D3/34 - with one or more auxiliary substances
  • C07C7/05 - with the aid of auxiliary compounds
  • G10H1/055 - by switches with variable impedance elements

• US Classifications

  • 203 - Distillation: processes, separatory
  • 568 - Organic compounds
  • 585 - Chemistry of hydrocarbon compounds
  • 984 - Musical instruments