3819912

Information

• Patent Grant
• 3819912

• References
• Source

• Patent Number

  3,819,912

• Date Filed

  Not available

• Date Issued

  Tuesday, June 25, 1974
  50 years ago

• CPC

  • G06K13/24 - Guiding of record carriers Recognising end of record carrier

• US Classifications

  • 250 - Radiant energy
  • 178 - Telegraphy
  • 235 - Registers