1639459

Information

• Patent Grant
• 1639459

• References
• Source

• Patent Number

  1,639,459

• Date Filed

  Not available

• Date Issued

  Tuesday, August 16, 1927
  97 years ago

• CPC

  • B21J7/12 - the lever being a spring
  • Y10T74/18176 - Crank, pitman, lever, and slide

• US Classifications

  • 072 - Metal deforming
  • 074 - Machine element or mechanism