1704674

Information

• Patent Grant
• 1704674

• References
• Source

• Patent Number

  1,704,674

• Date Filed

  Not available

• Date Issued

  Tuesday, March 5, 1929
  95 years ago

• CPC

  • E21C29/145 - Means for tensioning the haulage chains or cables

• US Classifications

  • 299 - Mining or in situ disintegration of hard material