3785248

Information

• Patent Grant
• 3785248

• References
• Source

• Patent Number

  3,785,248

• Date Filed

  Not available

• Date Issued

  Tuesday, January 15, 1974
  51 years ago

• CPC

  • E21B6/08 - Separate drives for percussion and rotation
  • F01B17/00 - Reciprocating-piston machines or engines characterised by use of uniflow principle
  • F01B17/02 - Engines

• US Classifications

  • 091 - Motors: expansible chamber type
  • 173 - Tool driving or impacting