140681

Information

• Patent Grant
• 140681

• References
• Source

• Patent Number

  140,681

• Date Filed

  Not available

• Date Issued

  Tuesday, July 8, 1873
  151 years ago

• CPC

  • B28D1/088 - Sawing in situ
  • E21C25/24 - with flat jibs only

• US Classifications

  • 299 - Mining or in situ disintegration of hard material