1809975

Information

• Patent Grant
• 1809975

• References
• Source

• Patent Number

  1,809,975

• Date Filed

  Not available

• Date Issued

  Tuesday, June 16, 1931
  93 years ago

• CPC

  • B23D77/042 - by means of oblique planes
  • Y10T408/858945 - Axially spaced tool-retaining collars

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool
  • 166 - Wells