2643439

Information

• Patent Grant
• 2643439

• References
• Source

• Patent Number

  2,643,439

• Date Filed

  Not available

• Date Issued

  Tuesday, June 30, 1953
  71 years ago

• CPC

  • B21H7/06 - ploughshares axes
  • Y10T29/27 - Plow or cultivator iron making

• US Classifications

  • 029 - Metal working