3656855

Information

• Patent Grant
• 3656855

• References
• Source

• Patent Number

  3,656,855

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1972
  52 years ago

• CPC

  • G01D5/40 - specially adapted for use with infra-red light

• US Classifications

  • 356 - Optics: measuring and testing
  • 072 - Metal deforming
  • 250 - Radiant energy