2647736

Information

• Patent Grant
• 2647736

• References
• Source

• Patent Number

  2,647,736

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1953
  71 years ago

• CPC

  • E21D15/60 - Devices for withdrawing props or chocks

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 299 - Mining or in situ disintegration of hard material