1980554

Information

• Patent Grant
• 1980554

• References
• Source

• Patent Number

  1,980,554

• Date Filed

  Not available

• Date Issued

  Tuesday, November 13, 1934
  90 years ago

• CPC

  • B23F23/1218 - Checking devices for controlling workpieces in machines for manufacturing gear teeth
  • B23F13/04 - by grinding

• US Classifications

  • 451 - Abrading