3911590

Information

• Patent Grant
• 3911590

• References
• Source

• Patent Number

  3,911,590

• Date Filed

  Not available

• Date Issued

  Tuesday, October 14, 1975
  49 years ago

• CPC

  • G01C9/14 - movable in more than one direction
  • E21B47/02232 - using a pendulum

• US Classifications

  • 033 - Geometrical instruments