3809921

Information

• Patent Grant
• 3809921

• References
• Source

• Patent Number

  3,809,921

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • H01H19/183 - adapted for operation by the simultaneous action of two cam plates, rotating at different speeds
  • Y10T307/766 - Condition responsive
  • Y10T307/773 - Light, heat, vibratory or radiant energy

• US Classifications

  • 307 - Electrical transmission or interconnection systems
  • 200 - Electricity: circuit makers and breakers