3309145

Information

• Patent Grant
• 3309145

• References
• Source

• Patent Number

  3,309,145

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1967
  57 years ago

• CPC

  • E21C31/04 - imparting both a rotary and reciprocating motion

• US Classifications

  • 299 - Mining or in situ disintegration of hard material