2021227

Information

• Patent Grant
• 2021227

• References
• Source

• Patent Number

  2,021,227

• Date Filed

  Not available

• Date Issued

  Tuesday, November 19, 1935
  89 years ago

• CPC

  • B22D7/10 - Hot tops therefor
  • Y10T29/49979 - After deforming
  • Y10T428/12403 - Longitudinally smooth and symmetrical

• US Classifications

  • 029 - Metal working
  • 072 - Metal deforming
  • 164 - Metal founding
  • 428 - Stock material or miscellaneous articles