1328072

Information

• Patent Grant
• 1328072

• References
• Source

• Patent Number

  1,328,072

• Date Filed

  Not available

• Date Issued

  Tuesday, January 13, 1920
  105 years ago

• CPC

  • H01H21/88 - with intermediate position of rest

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 340 - Communications: electrical