3757474

Information

• Patent Grant
• 3757474

• References
• Source

• Patent Number

  3,757,474

• Date Filed

  Not available

• Date Issued

  Tuesday, September 11, 1973
  51 years ago

• CPC

  • B24B19/09 - for grinding trochoidal surfaces
  • Y10S451/919 - Wankel

• US Classifications

  • 451 - Abrading