2815347

Information

• Patent Grant
• 2815347

• References
• Source

• Patent Number

  2,815,347

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1957
  67 years ago

• CPC

  • C09B5/008 - only N-containing hetero rings

• US Classifications

  • 546 - Organic compounds
  • 174 - Electricity: conductors and insulators