3553442

Information

• Patent Grant
• 3553442

• References
• Source

• Patent Number

  3,553,442

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1971
  54 years ago

• CPC

  • B60N5/00 - Arrangements or devices on vehicles for entrance or exit control of passengers
  • B60N2/002 - Passenger detection systems

• US Classifications

  • 377 - Electrical pulse counters, pulse dividers, or shift registers: circuits and systems
  • 235 - Registers