1957468

Information

• Patent Grant
• 1957468

• References
• Source

• Patent Number

  1,957,468

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1934
  90 years ago

• CPC

  • C10C1/16 - Winning of pitch

• US Classifications

  • 208 - Mineral oils: processes and products