3820377

Information

• Patent Grant
• 3820377

• References
• Source

• Patent Number

  3,820,377

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • B21D5/00 - Bending sheet metal along straight lines
  • B21D11/22 - Auxiliary equipment

• US Classifications

  • 072 - Metal deforming