2149275

Information

• Patent Grant
• 2149275

• References
• Source

• Patent Number

  2,149,275

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1939
  86 years ago

• CPC

  • C10C1/005 - by mixing two or more coaltar fractions

• US Classifications

  • 208 - Mineral oils: processes and products