1809759

Information

• Patent Grant
• 1809759

• References
• Source

• Patent Number

  1,809,759

• Date Filed

  Not available

• Date Issued

  Tuesday, June 9, 1931
  93 years ago

• CPC

  • G01L7/24 - involving balances in the form of rings partly filled with liquid

• US Classifications

  • 073 - Measuring and testing