1902648

Information

• Patent Grant
• 1902648

• References
• Source

• Patent Number

  1,902,648

• Date Filed

  Not available

• Date Issued

  Tuesday, March 21, 1933
  91 years ago

• CPC

  • C05B11/04 - using mineral acid
  • C01B25/22 - Preparation by reacting phosphate-containing material with an acid

• US Classifications

  • 423 - Chemistry of inorganic compounds