2810993

Information

• Patent Grant
• 2810993

• References
• Source

• Patent Number

  2,810,993

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1957
  67 years ago

• CPC

  • B21F35/00 - Making springs from wire
  • B21F11/005 - springs
  • B24B7/167 - end faces coil springs
  • Y10T29/5187 - Wire working

• US Classifications

  • 451 - Abrading
  • 029 - Metal working