3457061

Information

• Patent Grant
• 3457061

• References
• Source

• Patent Number

  3,457,061

• Date Filed

  Not available

• Date Issued

  Tuesday, July 22, 1969
  55 years ago

• CPC

  • C05B11/08 - using sulfuric acid
  • C01B25/2346 - Concentration

• US Classifications

  • 071 - Chemistry: fertilizers