3599494

Information

• Patent Grant
• 3599494

• References
• Source

• Patent Number

  3,599,494

• Date Filed

  Not available

• Date Issued

  Tuesday, August 17, 1971
  53 years ago

• CPC

  • E21B47/02 - Determining slope or direction
  • G01C19/44 - for indicating the vertical
  • Y10T74/1264 - Optical

• US Classifications

  • 074 - Machine element or mechanism
  • 310 - Electrical generator or motor structure