1904161

Information

• Patent Grant
• 1904161

• References
• Source

• Patent Number

  1,904,161

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1933
  91 years ago

• CPC

  • C10C1/14 - Winning of tar oils from tar

• US Classifications

  • 208 - Mineral oils: processes and products