3619009

Information

• Patent Grant
• 3619009

• References
• Source

• Patent Number

  3,619,009

• Date Filed

  Not available

• Date Issued

  Tuesday, November 9, 1971
  53 years ago

• CPC

  • E21C37/02 - by wedges
  • Y10S138/02 - Glass fiber
  • Y10T16/469 - Detachable handle

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 016 - Miscellaneous hardware
  • 138 - Pipes and tubular conduits
  • 294 - Handling: hand and hoist-line implements