1642859

Information

• Patent Grant
• 1642859

• References
• Source

• Patent Number

  1,642,859

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1927
  96 years ago

• CPC

  • B21J7/32 - operated by rotary drive

• US Classifications

  • 072 - Metal deforming
  • 173 - Tool driving or impacting