2187851

Information

• Patent Grant
• 2187851

• References
• Source

• Patent Number

  2,187,851

• Date Filed

  Not available

• Date Issued

  Tuesday, January 23, 1940
  85 years ago

• CPC

  • G04C23/00 - Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
  • Y10T74/18464 - Reciprocating rack connections

• US Classifications

  • 318 - Electricity: motive power systems
  • 074 - Machine element or mechanism
  • 200 - Electricity: circuit makers and breakers
  • 455 - Telecommunications