3630624

Information

• Patent Grant
• 3630624

• References
• Source

• Patent Number

  3,630,624

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1971
  53 years ago

• CPC

  • G01D5/38 - by diffraction gratings
  • G01B21/065 - for stretchable materials

• US Classifications

  • 356 - Optics: measuring and testing
  • 250 - Radiant energy