1871852

Information

• Patent Grant
• 1871852

• References
• Source

• Patent Number

  1,871,852

• Date Filed

  Not available

• Date Issued

  Tuesday, August 16, 1932
  93 years ago

• CPC

  • C09B1/346 - only sulfonated in a substituent
  • C09B1/34 - sulfonated

• US Classifications

  • 552 - Organic compounds