1476874

Information

• Patent Grant
• 1476874

• References
• Source

• Patent Number

  1,476,874

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1923
  101 years ago

• CPC

  • G03C7/08 - from diversely-coloured grains irregularly distributed

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof