2865621

Information

• Patent Grant
• 2865621

• References
• Source

• Patent Number

  2,865,621

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1958
  66 years ago

• CPC

  • E21C25/365 - allowing the bending into at least two planes

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 474 - Endless belt power transmission systems or components