3831686

Information

• Patent Grant
• 3831686

• References
• Source

• Patent Number

  3,831,686

• Date Filed

  Not available

• Date Issued

  Tuesday, August 27, 1974
  50 years ago

• CPC

  • B03C3/766 - with pneumatic rappers

• US Classifications

  • 173 - Tool driving or impacting
  • 096 - Gas separation: apparatus