490871

Information

• Patent Grant
• 490871

• References
• Source

• Patent Number

  490,871

• Date Filed

  Not available

• Date Issued

  Tuesday, January 31, 1893
  132 years ago

• CPC

  • G01F3/02 - with measuring chambers which expand or contract during measurement

• US Classifications

  • 073 - Measuring and testing
  • 091 - Motors: expansible chamber type