3694033

Information

• Patent Grant
• 3694033

• References
• Source

• Patent Number

  3,694,033

• Date Filed

  Not available

• Date Issued

  Tuesday, September 26, 1972
  52 years ago

• CPC

  • E01C23/0946 - specially for forming recesses to receive marking materials or markers
  • E01C23/088 - Rotary tools
  • E01C2301/50 - Methods or devices for preventing dust by spraying or sucking

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 173 - Tool driving or impacting