1455771

Information

• Patent Grant
• 1455771

• References
• Source

• Patent Number

  1,455,771

• Date Filed

  Not available

• Date Issued

  Tuesday, May 22, 1923
  101 years ago

• CPC

  • B21C37/152 - Making rifle and gunbarrels
  • Y10T29/47 - Burnishing

• US Classifications

  • 089 - Ordnance
  • 029 - Metal working
  • 072 - Metal deforming