1641972

Information

• Patent Grant
• 1641972

• References
• Source

• Patent Number

  1,641,972

• Date Filed

  Not available

• Date Issued

  Tuesday, September 13, 1927
  97 years ago

• CPC

  • G04C23/00 - Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
  • G04C23/14 - Mechanisms continuously running to relate the operation(s) to the time of day

• US Classifications

  • 200 - Electricity: circuit makers and breakers