2857659

Information

• Patent Grant
• 2857659

• References
• Source

• Patent Number

  2,857,659

• Date Filed

  Not available

• Date Issued

  Tuesday, October 28, 1958
  66 years ago

• CPC

  • B21D53/045 - by inflating partially united plates
  • Y10S29/038 - Spot welding with other step
  • Y10T29/49371 - with subsequent fluid expansion
  • Y10T29/49805 - Shaping by direct application of fluent pressure

• US Classifications

  • 029 - Metal working
  • 165 - Heat exchange