1662137

Information

• Patent Grant
• 1662137

• References
• Source

• Patent Number

  1,662,137

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1928
  96 years ago

• CPC

  • B24B19/06 - for grinding races
  • B24B33/025 - Internal surface of conical shape
  • B24B41/002 - Grinding heads
  • Y10S451/901 - Super finish

• US Classifications

  • 451 - Abrading