1817457

Information

• Patent Grant
• 1817457

• References
• Source

• Patent Number

  1,817,457

• Date Filed

  Not available

• Date Issued

  Tuesday, August 4, 1931
  93 years ago

• CPC

  • G01F23/50 - using mechanically actuated indicating means

• US Classifications

  • 073 - Measuring and testing