2157736

Information

• Patent Grant
• 2157736

• References
• Source

• Patent Number

  2,157,736

• Date Filed

  Not available

• Date Issued

  Tuesday, May 9, 1939
  85 years ago

• CPC

  • E21C29/04 - by cable or chains
  • B65G65/00 - Loading or unloading
  • B65G2814/0329 - Common features for picking-up means

• US Classifications

  • 414 - Material or article handling
  • 299 - Mining or in situ disintegration of hard material