3891406

Information

• Patent Grant
• 3891406

• References
• Source

• Patent Number

  3,891,406

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1975
  49 years ago

• CPC

  • B24B19/09 - for grinding trochoidal surfaces
  • B23Q7/04 - by means of grippers
  • Y10S451/919 - Wankel

• US Classifications

  • 451 - Abrading
  • 414 - Material or article handling