1680016

Information

• Patent Grant
• 1680016

• References
• Source

• Patent Number

  1,680,016

• Date Filed

  Not available

• Date Issued

  Tuesday, August 7, 1928
  96 years ago

• CPC

  • A47F7/18 - for clothing materials
  • Y10S40/90 - Mirror that has changing effect

• US Classifications

  • 434 - Education and demonstration
  • 040 - Card, picture, or sign exhibiting