1808334

Information

• Patent Grant
• 1808334

• References
• Source

• Patent Number

  1,808,334

• Date Filed

  Not available

• Date Issued

  Tuesday, June 2, 1931
  93 years ago

• CPC

  • G01R11/42 - Circuitry therefor

• US Classifications

  • 324 - Electricity: measuring and testing