1723383

Information

• Patent Grant
• 1723383

• References
• Source

• Patent Number

  1,723,383

• Date Filed

  Not available

• Date Issued

  Tuesday, August 6, 1929
  95 years ago

• CPC

  • E21F13/065 - Scrapers

• US Classifications

  • 414 - Material or article handling
  • 299 - Mining or in situ disintegration of hard material
  • 310 - Electrical generator or motor structure