1780842

Information

• Patent Grant
• 1780842

• References
• Source

• Patent Number

  1,780,842

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1930
  94 years ago

• CPC

  • D21C3/14 - ammonium bisulfite

• US Classifications

  • 162 - Paper making and fiber liberation
  • 071 - Chemistry: fertilizers
  • 423 - Chemistry of inorganic compounds