1520874

Information

• Patent Grant
• 1520874

• References
• Source

• Patent Number

  1,520,874

• Date Filed

  Not available

• Date Issued

  Tuesday, December 30, 1924
  100 years ago

• CPC

  • G01F1/366 - with mechanical or fluidic indication

• US Classifications

  • 346 - Recorders
  • 235 - Registers