3909990

Information

• Patent Grant
• 3909990

• References
• Source

• Patent Number

  3,909,990

• Date Filed

  Not available

• Date Issued

  Tuesday, October 7, 1975
  49 years ago

• CPC

  • B23F19/055 - by making use of a tool in the shape of a bevel gear or a crown gear
  • B23F21/03 - Honing tools

• US Classifications

  • 451 - Abrading