2306658

Information

• Patent Grant
• 2306658

• References
• Source

• Patent Number

  2,306,658

• Date Filed

  Not available

• Date Issued

  Tuesday, December 29, 1942
  81 years ago

• CPC

  • B21D28/32 - in other articles of special shape
  • Y10T29/29 - Railway-chair making

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working