3816001

Information

• Patent Grant
• 3816001

• References
• Source

• Patent Number

  3,816,001

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1974
  50 years ago

• CPC

  • G01B11/043 - for measuring length
  • G01N15/02 - Investigating particle size or size distribution
  • G01N33/362 - material before processing
  • G01N2015/0049 - of filaments in gas

• US Classifications

  • 356 - Optics: measuring and testing
  • 250 - Radiant energy
  • 406 - Conveyors: fluid current