3055648

Information

• Patent Grant
• 3055648

• References
• Source

• Patent Number

  3,055,648

• Date Filed

  Not available

• Date Issued

  Tuesday, September 25, 1962
  62 years ago

• CPC

  • F42D1/10 - Feeding explosives in granular or slurry form Feeding explosives by pneumatic or hydraulic pressure
  • E21B3/02 - Surface drives for rotary drilling
  • E21C37/14 - by compressed air by gas blast by gasifying liquids

• US Classifications

  • 299 - Mining or in situ disintegration of hard material