3664890

Information

• Patent Grant
• 3664890

• References
• Source

• Patent Number

  3,664,890

• Date Filed

  Not available

• Date Issued

  Tuesday, May 23, 1972
  52 years ago

• CPC

  • B23K20/001 - by extrusion or drawing
  • B21D22/203 - of compound articles
  • Y10S428/926 - Thickness of individual layer specified
  • Y10T428/1275 - Next to Group VIII or IB metal-base component
  • Y10T428/12986 - Adjacent functionally defined components

• US Classifications

  • 148 - Metal treatment
  • 428 - Stock material or miscellaneous articles