2795935

Information

• Patent Grant
• 2795935

• References
• Source

• Patent Number

  2,795,935

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1957
  67 years ago

• CPC

  • E21D23/082 - acting solely on the elements of the supports
  • E21D23/0095 - Temporary supports at the driving front

• US Classifications

  • 405 - Hydraulic and earth engineering
  • 091 - Motors: expansible chamber type
  • 092 - Expansible chamber devices
  • 180 - Motor vehicles
  • 254 - Implements or apparatus for applying pushing or pulling force
  • 299 - Mining or in situ disintegration of hard material