3349473

Information

• Patent Grant
• 3349473

• References
• Source

• Patent Number

  3,349,473

• Date Filed

  Not available

• Date Issued

  Tuesday, October 31, 1967
  57 years ago

• CPC

  • B21F3/02 - helically
  • B24B7/162 - for mass articles
  • B24B7/167 - end faces coil springs
  • B24B41/005 - Feeding or manipulating devices specially adapted to grinding machines
  • Y10T29/51 - Plural diverse manufacturing apparatus including means for metal shaping or assembling
  • Y10T29/5136 - Separate tool stations for selective or successive operation on work

• US Classifications

  • 029 - Metal working
  • 451 - Abrading