3749219

Information

• Patent Grant
• 3749219

• References
• Source

• Patent Number

  3,749,219

• Date Filed

  Not available

• Date Issued

  Tuesday, July 31, 1973
  51 years ago

• CPC

  • G07B11/11 - for cancelling tickets
  • G07F17/145 - for revolving doors or turnstiles

• US Classifications

  • 194 - Check-actuated control mechanisms