3355788

Information

• Patent Grant
• 3355788

• References
• Source

• Patent Number

  3,355,788

• Date Filed

  Not available

• Date Issued

  Tuesday, December 5, 1967
  57 years ago

• CPC

  • B21D53/08 - of both metal tubes and sheet metal
  • B21C37/22 - Making finned or ribbed tubes by fixing strip or like material to tubes
  • B23C3/30 - Milling straight grooves
  • B23D45/122 - for cutting slots in tubes
  • Y10S83/952 - Moving work
  • Y10T29/49378 - Finned tube
  • Y10T83/0311 - By use of plural independent rotary blades

• US Classifications

  • 029 - Metal working
  • 083 - Cutting
  • 165 - Heat exchange