3754790

Information

• Patent Grant
• 3754790

• References
• Source

• Patent Number

  3,754,790

• Date Filed

  Not available

• Date Issued

  Tuesday, August 28, 1973
  51 years ago

• CPC

  • E21D9/1093 - Devices for supporting, advancing or orientating the machine or the tool-carrier
  • E21C27/28 - by percussive drills with breaking-down means
  • E21C35/06 - Equipment for positioning the whole machine in relation to its substructure
  • E21D9/106 - with percussive tools

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 173 - Tool driving or impacting
  • 180 - Motor vehicles