2281172

Information

• Patent Grant
• 2281172

• References
• Source

• Patent Number

  2,281,172

• Date Filed

  Not available

• Date Issued

  Tuesday, April 28, 1942
  83 years ago

• CPC

  • B23B51/05 - for cutting discs from sheet
  • B23B2260/088 - Indication scales
  • Y10T408/868 - with multiple cutting positions
  • Y10T408/875 - including means to "form" depression in work

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 033 - Geometrical instruments