3643418

Information

• Patent Grant
• 3643418

• References
• Source

• Patent Number

  3,643,418

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  53 years ago

• CPC

  • G04G5/02 - by temporarily changing the number of pulses per unit time
  • G04C3/001 - Electromechanical switches for setting or display
  • G04F5/00 - Apparatus for producing preselected time intervals for use as timing standards
  • G04G5/022 - quick-feed method
  • G04G5/025 - the time-counters first being reset to zero

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology