2112189

Information

• Patent Grant
• 2112189

• References
• Source

• Patent Number

  2,112,189

• Date Filed

  Not available

• Date Issued

  Tuesday, March 22, 1938
  86 years ago

• CPC

  • C01G21/10 - Red lead (Pb3O4)
  • C01P2006/60 - Optical properties

• US Classifications

  • 423 - Chemistry of inorganic compounds