1843240

Information

• Patent Grant
• 1843240

• References
• Source

• Patent Number

  1,843,240

• Date Filed

  Not available

• Date Issued

  Tuesday, February 2, 1932
  92 years ago

• CPC

  • B21F3/06 - internally on a hollow form
  • Y10T83/4625 - Gearing modified to lock the work-feed means

• US Classifications

  • 072 - Metal deforming
  • 083 - Cutting