2180893

Information

• Patent Grant
• 2180893

• References
• Source

• Patent Number

  2,180,893

• Date Filed

  Not available

• Date Issued

  Tuesday, November 21, 1939
  85 years ago

• CPC

  • G01G23/08 - by fluid means

• US Classifications

  • 188 - Brakes
  • 073 - Measuring and testing
  • 267 - Spring devices
  • 340 - Communications: electrical