672448

Information

• Patent Grant
• 672448

• References
• Source

• Patent Number

  672,448

• Date Filed

  Not available

• Date Issued

  Tuesday, April 23, 1901
  123 years ago

• CPC

  • B21D5/029 - with shearing devices
  • B23Q1/626 - followed perpendicularly by a single sliding pair
  • Y10T29/50 - Convertible metal working machine

• US Classifications

  • 029 - Metal working
  • 030 - Cutlery
  • 072 - Metal deforming