1782408

Information

• Patent Grant
• 1782408

• References
• Source

• Patent Number

  1,782,408

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1930
  94 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