3691691

Information

• Patent Grant
• 3691691

• References
• Source

• Patent Number

  3,691,691

• Date Filed

  Not available

• Date Issued

  Tuesday, September 19, 1972
  52 years ago

• CPC

  • B24C3/20 - the work being supported by turn-tables

• US Classifications

  • 451 - Abrading