2057773

Information

• Patent Grant
• 2057773

• References
• Source

• Patent Number

  2,057,773

• Date Filed

  Not available

• Date Issued

  Tuesday, October 20, 1936
  88 years ago

• CPC

  • H04L13/14 - Electronic distributors
  • H04L17/14 - with optical sensing means

• US Classifications

  • 178 - Telegraphy
  • 235 - Registers