1297940

Information

• Patent Grant
• 1297940

• References
• Source

• Patent Number

  1,297,940

• Date Filed

  Not available

• Date Issued

  Tuesday, March 18, 1919
  105 years ago

• CPC

  • B21J7/12 - the lever being a spring
  • B21D1/06 - Removing local distortions

• US Classifications

  • 072 - Metal deforming