2798390

Information

• Patent Grant
• 2798390

• References
• Source

• Patent Number

  2,798,390

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1957
  67 years ago

• CPC

  • B23P15/105 - Enlarging pistons
  • B21H7/14 - knurled articles
  • Y10S72/703 - Knurling

• US Classifications

  • 072 - Metal deforming
  • 030 - Cutlery