2209291

Information

• Patent Grant
• 2209291

• References
• Source

• Patent Number

  2,209,291

• Date Filed

  Not available

• Date Issued

  Tuesday, July 23, 1940
  84 years ago

• CPC

  • C23G1/083 - solutions containing H3PO4

• US Classifications

  • 148 - Metal treatment
  • 510 - Cleaning compositions for solid surfaces, auxiliary compositions therefor, or processes of preparing the compositions