2733047

Information

• Patent Grant
• 2733047

• References
• Source

• Patent Number

  2,733,047

• Date Filed

  Not available

• Date Issued

  Tuesday, January 31, 1956
  68 years ago

• CPC

  • E21B7/008 - Drilling ice or a formation covered by ice
  • A01K97/01 - for ice-fishing; Ice drilling, hook-setting or signalling devices
  • F25C5/043 - Tools

• US Classifications

  • 175 - Boring or penetrating the earth