939742

Information

• Patent Grant
• 939742

• References
• Source

• Patent Number

  939,742

• Date Filed

  Not available

• Date Issued

  Tuesday, November 9, 1909
  115 years ago

• CPC

  • C14C3/12 - using purified or modified vegetable tanning agents
  • C07C37/00 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring

• US Classifications

  • 560 - Organic compounds