3661621

Information

• Patent Grant
• 3661621

• References
• Source

• Patent Number

  3,661,621

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1972
  52 years ago

• CPC

  • B05C9/045 - in which the opposite sides of the work are the internal and external surfaces of hollow articles
  • B05D3/0493 - using vacuum
  • B05D7/222 - of pipes
  • B05D2254/06 - Applying the material on the interior and exterior of the tube
  • Y10S118/12 - Pipe and tube immersion

• US Classifications

  • 427 - Coating processes
  • 118 - Coating apparatus