3621692

Information

• Patent Grant
• 3621692

• References
• Source

• Patent Number

  3,621,692

• Date Filed

  Not available

• Date Issued

  Tuesday, November 23, 1971
  53 years ago

• CPC

  • B21H1/14 - balls, rollers, cone rollers, or like bodies
  • Y10T29/49712 - Ball making

• US Classifications

  • 072 - Metal deforming
  • 029 - Metal working