3154688

Information

• Patent Grant
• 3154688

• References
• Source

• Patent Number

  3,154,688

• Date Filed

  Not available

• Date Issued

  Tuesday, October 27, 1964
  60 years ago

• CPC

  • G01D5/38 - by diffraction gratings
  • G01B21/065 - for stretchable materials
  • G01D5/34715 - Scale reading or illumination devices

• US Classifications

  • 250 - Radiant energy