1641430

Information

• Patent Grant
• 1641430

• References
• Source

• Patent Number

  1,641,430

• Date Filed

  Not available

• Date Issued

  Tuesday, September 6, 1927
  97 years ago

• CPC

  • E21C29/28 - adjusting the height of the whole machine

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 105 - Railway rolling stock
  • 173 - Tool driving or impacting