3577645

Information

• Patent Grant
• 3577645

• References
• Source

• Patent Number

  3,577,645

• Date Filed

  Not available

• Date Issued

  Tuesday, May 4, 1971
  54 years ago

• CPC

  • G01C5/04 - Hydrostatic levelling
  • G01C9/22 - with interconnected containers in fixed relation to each other

• US Classifications

  • 033 - Geometrical instruments