2152903

Information

• Patent Grant
• 2152903

• References
• Source

• Patent Number

  2,152,903

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1939
  85 years ago

• CPC

  • G07F17/28 - for radio apparatus

• US Classifications

  • 194 - Check-actuated control mechanisms
  • 200 - Electricity: circuit makers and breakers
  • 232 - Deposit and collection receptacles