1528546

Information

• Patent Grant
• 1528546

• References
• Source

• Patent Number

  1,528,546

• Date Filed

  Not available

• Date Issued

  Tuesday, March 3, 1925
  99 years ago

• CPC

  • E21C35/1936 - the picks having a square- or rectangular-section shank
  • B27B33/145 - having plural teeth on a single link
  • B28D1/125 - with exchangeable cutter bits or cutter segments

• US Classifications

  • 299 - Mining or in situ disintegration of hard material