1448638

Information

• Patent Grant
• 1448638

• References
• Source

• Patent Number

  1,448,638

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1923
  102 years ago

• CPC

  • B23B45/12 - by using a ratchet brace
  • Y10T408/639 - Reversible ratchet

• US Classifications

  • 408 - Cutting by use of rotating axially moving tool