1808307

Information

• Patent Grant
• 1808307

• References
• Source

• Patent Number

  1,808,307

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1931
  93 years ago

• CPC

  • E21C25/64 - Slitting machines guided solely by hand and either carried by hand or mounted on supports

• US Classifications

  • 299 - Mining or in situ disintegration of hard material