3878897

Information

• Patent Grant
• 3878897

• References
• Source

• Patent Number

  3,878,897

• Date Filed

  Not available

• Date Issued

  Tuesday, April 22, 1975
  49 years ago

• CPC

  • E21F5/14 - Fluid barriers or rock dusters made to work by, or at the same time as, shots or explosions
  • A62C3/02 - for area conflagrations

• US Classifications

  • 169 - Fire extinguishers