3721934

Information

• Patent Grant
• 3721934

• References
• Source

• Patent Number

  3,721,934

• Date Filed

  Not available

• Date Issued

  Tuesday, March 20, 1973
  51 years ago

• CPC

  • H01H37/68 - sealed in evacuated or gas-filled tube

• US Classifications

  • 337 - Electricity: electrothermally or thermally actuated switches