3280633

Information

• Patent Grant
• 3280633

• References
• Source

• Patent Number

  3,280,633

• Date Filed

  Not available

• Date Issued

  Tuesday, October 25, 1966
  58 years ago

• CPC

  • E21B49/025 - of underwater soil
  • E21B7/1245 - using explosive means

• US Classifications

  • 073 - Measuring and testing
  • 116 - Signals and indicators