1251139

Information

• Patent Grant
• 1251139

• References
• Source

• Patent Number

  1,251,139

• Date Filed

  Not available

• Date Issued

  Tuesday, December 25, 1917
  107 years ago

• CPC

  • B23B29/03407 - by means of screws and nuts
  • Y10T408/85988 - Screws mounted on common shaft

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool