3564712

Information

• Patent Grant
• 3564712

• References
• Source

• Patent Number

  3,564,712

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1971
  53 years ago

• CPC

  • B44B11/02 - for substantially two-dimensional carving, engraving or guilloching
  • B44B3/005 - characterised by the power drive
  • H02K33/04 - wherein the frequency of operation is determined by the frequency of uninterrupted ac energisation

• US Classifications

  • 030 - Cutlery
  • 033 - Geometrical instruments
  • 401 - Coating implements with material supply