2428675

Information

• Patent Grant
• 2428675

• References
• Source

• Patent Number

  2,428,675

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1947
  77 years ago

• CPC

  • B21D11/085 - by locally stretching or upsetting

• US Classifications

  • 072 - Metal deforming