3817733

Information

• Patent Grant
• 3817733

• References
• Source

• Patent Number

  3,817,733

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1974
  50 years ago

• CPC

  • A47B97/04 - Easels or stands for blackboards or the like
  • C03B23/057 - by fusing
  • C03B23/18 - Re-forming and sealing ampoules
  • C03B33/0855 - using a focussed radiation beam
  • C09K11/04 - containing natural or artificial radioactive elements or unspecified radioactive elements

• US Classifications

  • 065 - Glass manufacturing
  • 219 - Electric heating