3635563

Information

• Patent Grant
• 3635563

• References
• Source

• Patent Number

  3,635,563

• Date Filed

  Not available

• Date Issued

  Tuesday, January 18, 1972
  53 years ago

• CPC

  • G01D5/34 - the beams of light being detected by photocells
  • F23Q2/162 - with non-adjustable gas flame
  • G01B3/02 - Rulers or tapes with scales or marks for direct reading
  • H01T13/00 - Sparking plugs

• US Classifications

  • 356 - Optics: measuring and testing
  • 250 - Radiant energy
  • 359 - Optical: systems and elements