3626581

Information

• Patent Grant
• 3626581

• References
• Source

• Patent Number

  3,626,581

• Date Filed

  Not available

• Date Issued

  Tuesday, December 14, 1971
  53 years ago

• CPC

  • B21F99/00 - Subject matter not provided for in other groups of this subclass
  • B21F3/04 - externally on a mandrel or the like
  • B21F3/10 - to spirals other than flat
  • B21F15/02 - wire with wire
  • F42B1/036 - Manufacturing processes therefor
  • Y10T29/4981 - Utilizing transitory attached element or associated separate material
  • Y10T29/49812 - Temporary protective coating, impregnation, or cast layer

• US Classifications

  • 228 - Metal fusion bonding
  • 029 - Metal working