1957666

Information

• Patent Grant
• 1957666

• References
• Source

• Patent Number

  1,957,666

• Date Filed

  Not available

• Date Issued

  Tuesday, May 8, 1934
  90 years ago

• CPC

  • H01H21/60 - Change-over switches with stable intermediate position

• US Classifications

  • 200 - Electricity: circuit makers and breakers