3213757

Information

• Patent Grant
• 3213757

• References
• Source

• Patent Number

  3,213,757

• Date Filed

  Not available

• Date Issued

  Tuesday, October 26, 1965
  59 years ago

• CPC

  • G03F7/0037 - Production of three-dimensional images
  • Y10T409/30112 - Process
  • Y10T409/301792 - including means to sense optical or magnetic image
  • Y10T409/301904 - including tracer adapted to trigger electrical energy
  • Y10T409/302856 - For using planar templet in cutting profile [e.g., contour map from planar map, etc.]

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 434 - Education and demonstration