3858340

Information

• Patent Grant
• 3858340

• References
• Source

• Patent Number

  3,858,340

• Date Filed

  Not available

• Date Issued

  Tuesday, January 7, 1975
  49 years ago

• CPC

  • G03D13/12 - Frames
  • G03D9/02 - using rupturable ampoules of liquid
  • G09F5/04 - Cards of samples Books of samples

• US Classifications

  • 040 - Card, picture, or sign exhibiting