3527539

Information

• Patent Grant
• 3527539

• References
• Source

• Patent Number

  3,527,539

• Date Filed

  Not available

• Date Issued

  Tuesday, September 8, 1970
  54 years ago

• CPC

  • B25D5/02 - Automatic centre punches

• US Classifications

  • 356 - Optics: measuring and testing
  • 172 - Earth working