3840739

Information

• Patent Grant
• 3840739

• References
• Source

• Patent Number

  3,840,739

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1974
  50 years ago

• CPC

  • G01B11/24 - for measuring contours or curvatures
  • B23Q35/128 - Sensing by using optical means
  • G06K11/02 - Automatic curve followers

• US Classifications

  • 250 - Radiant energy
  • 318 - Electricity: motive power systems