3590261

Information

• Patent Grant
• 3590261

• References
• Source

• Patent Number

  3,590,261

• Date Filed

  Not available

• Date Issued

  Tuesday, June 29, 1971
  53 years ago

• CPC

  • G01L9/0007 - using photoelectric means
  • G01D5/34 - the beams of light being detected by photocells
  • G01L9/0032 - using photoelectric means
  • G01L9/0088 - using photoelectric means
  • H03M1/30 - incremental

• US Classifications

  • 250 - Radiant energy