2381890

Information

• Patent Grant
• 2381890

• References
• Source

• Patent Number

  2,381,890

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1945
  79 years ago

• CPC

  • B21K21/00 - Making hollow articles not covered by a single preceding sub-group
  • Y10S403/02 - Metal treatment
  • Y10T29/49428 - Gas and water specific plumbing component making
  • Y10T29/49885 - with coating before or during assembling

• US Classifications

  • 228 - Metal fusion bonding
  • 029 - Metal working
  • 072 - Metal deforming
  • 403 - Joints and connections