1858961

Information

• Patent Grant
• 1858961

• References
• Source

• Patent Number

  1,858,961

• Date Filed

  Not available

• Date Issued

  Tuesday, May 17, 1932
  92 years ago

• CPC

  • B21B19/08 - Enlarging tube diameter
  • Y10T74/18616 - Single input, plural outputs

• US Classifications

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