2234832

Information

• Patent Grant
• 2234832

• References
• Source

• Patent Number

  2,234,832

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1941
  84 years ago

• CPC

  • H04L17/14 - with optical sensing means
  • H04L17/06 - Contact operating means

• US Classifications

  • 178 - Telegraphy
  • 250 - Radiant energy
  • 341 - Coded data generation or conversion