3729617

Information

• Patent Grant
• 3729617

• References
• Source

• Patent Number

  3,729,617

• Date Filed

  Not available

• Date Issued

  Tuesday, April 24, 1973
  52 years ago

• CPC

  • G07F17/145 - for revolving doors or turnstiles
  • G07B15/00 - Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
  • G07B15/04 - comprising devices to free a barrier, turnstile, or the like
  • G07C1/30 - Parking meters
  • Y10S194/902 - Check-operated device for controlling parking lot

• US Classifications

  • 235 - Registers
  • 194 - Check-actuated control mechanisms
  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems