2815687

Information

• Patent Grant
• 2815687

• References
• Source

• Patent Number

  2,815,687

• Date Filed

  Not available

• Date Issued

  Tuesday, December 10, 1957
  67 years ago

• CPC

  • B21K5/06 - Dressing
  • B21K5/02 - drilling-tools or other for making or working on holes

• US Classifications

  • 072 - Metal deforming