1840724

Information

• Patent Grant
• 1840724

• References
• Source

• Patent Number

  1,840,724

• Date Filed

  Not available

• Date Issued

  Tuesday, January 12, 1932
  93 years ago

• CPC

  • B23K31/02 - relating to soldering or welding
  • B23K2201/08 - finned or ribbed
  • Y10T29/49378 - Finned tube

• US Classifications

  • 029 - Metal working
  • 165 - Heat exchange
  • 228 - Metal fusion bonding