2798388

Information

• Patent Grant
• 2798388

• References
• Source

• Patent Number

  2,798,388

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1957
  67 years ago

• CPC

  • B21D11/085 - by locally stretching or upsetting

• US Classifications

  • 072 - Metal deforming