3419877

Information

• Patent Grant
• 3419877

• References
• Source

• Patent Number

  3,419,877

• Date Filed

  Not available

• Date Issued

  Tuesday, December 31, 1968
  56 years ago

• CPC

  • G07C3/06 - in graphical form

• US Classifications

  • 346 - Recorders
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets