1704866

Information

• Patent Grant
• 1704866

• References
• Source

• Patent Number

  1,704,866

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1929
  97 years ago

• CPC

  • E21C27/36 - Machine self-propelled along the working face
  • Y10T16/54 - including means to hold or retard hinged members against pivotal movement [e.g., catch]

• US Classifications

  • 299 - Mining or in situ disintegration of hard material
  • 016 - Miscellaneous hardware
  • 180 - Motor vehicles