3521506

Information

• Patent Grant
• 3521506

• References
• Source

• Patent Number

  3,521,506

• Date Filed

  Not available

• Date Issued

  Tuesday, July 21, 1970
  54 years ago

• CPC

  • B23Q1/48 - with sliding pairs and rotating pairs
  • B23B39/14 - with special provision to enable the machine or the drilling or boring head to be moved into any desired position
  • Y10S408/01 - Bowling ball drill
  • Y10T408/21 - with signal, indicator, illuminator or optical means
  • Y10T409/301176 - Reproducing means
  • Y10T409/301848 - with means to support templet above or under work

• US Classifications

  • 409 - Gear cutting, milling, or planing
  • 353 - Optics: image projectors
  • 408 - Cutting by use of rotating axially moving tool