172443

Information

• Patent Grant
• 172443

• References
• Source

• Patent Number

  172,443

• Date Filed

  Not available

• Date Issued

  Tuesday, January 18, 1876
  148 years ago

• CPC

  • B23K20/122 - using a non-consumable tool
  • Y10T16/73 - Sash weights

• US Classifications

  • 228 - Metal fusion bonding
  • 016 - Miscellaneous hardware
  • 072 - Metal deforming