1011770

Information

• Patent Grant
• 1011770

• References
• Source

• Patent Number

  1,011,770

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1911
  112 years ago

• CPC

  • C09B29/16 - Naphthol-sulfonic acids

• US Classifications

  • 534 - Organic compounds