3847581

Information

• Patent Grant
• 3847581

• References
• Source

• Patent Number

  3,847,581

• Date Filed

  Not available

• Date Issued

  Tuesday, November 12, 1974
  50 years ago

• CPC

  • C03B5/2255 - by centrifuging
  • G01F23/292 - Light
  • G05D9/12 - characterised by the use of electric means

• US Classifications

  • 065 - Glass manufacturing
  • 073 - Measuring and testing
  • 222 - Dispensing
  • 356 - Optics: measuring and testing