1823841

Information

• Patent Grant
• 1823841

• References
• Source

• Patent Number

  1,823,841

• Date Filed

  Not available

• Date Issued

  Tuesday, September 15, 1931
  94 years ago

• CPC

  • G01P3/28 - by using pumps

• US Classifications

  • 073 - Measuring and testing
  • 188 - Brakes