2418320

Information

• Patent Grant
• 2418320

• References
• Source

• Patent Number

  2,418,320

• Date Filed

  Not available

• Date Issued

  Tuesday, April 1, 1947
  77 years ago

• CPC

  • B21K5/06 - Dressing
  • E21C35/1936 - the picks having a square- or rectangular-section shank

• US Classifications

  • 076 - Metal tools and implements, making
  • 299 - Mining or in situ disintegration of hard material