1383840

Information

• Patent Grant
• 1383840

• References
• Source

• Patent Number

  1,383,840

• Date Filed

  Not available

• Date Issued

  Tuesday, July 5, 1921
  103 years ago

• CPC

  • B21D19/02 - by continuously-acting tools moving along the edge

• US Classifications

  • 072 - Metal deforming