3837455

Information

• Patent Grant
• 3837455

• References
• Source

• Patent Number

  3,837,455

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1974
  50 years ago

• CPC

  • G07F7/0636 - in which the trolleys or carts are kept in a restricted zone such as a coral-like enclosure, or are passing a gate before use is possible
  • G07F7/0627 - in which the trolleys or carts are kept fixed or linked onto a rail or barrier

• US Classifications

  • 194 - Check-actuated control mechanisms
  • 049 - Movable or removable closures