3820580

Information

• Patent Grant
• 3820580

• References
• Source

• Patent Number

  3,820,580

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • B29D30/68 - Cutting profiles into the treads of tyres
  • Y10T83/4821 - Side cutting helical blade
  • Y10T83/9394 - Helical tool

• US Classifications

  • 157 - Wheelwright machines
  • 083 - Cutting