1734442

Information

• Patent Grant
• 1734442

• References
• Source

• Patent Number

  1,734,442

• Date Filed

  Not available

• Date Issued

  Tuesday, November 5, 1929
  95 years ago

• CPC

  • C09B3/22 - Dibenzanthrones Isodibenzanthrones

• US Classifications

  • 552 - Organic compounds