2803778

Information

• Patent Grant
• 2803778

• References
• Source

• Patent Number

  2,803,778

• Date Filed

  Not available

• Date Issued

  Tuesday, August 20, 1957
  67 years ago

• CPC

  • H03B5/1835 - the active element in the amplifier being a vacuum tube
  • G01S13/08 - Systems for measuring distance only
  • H01J25/76 - Dynamic electron-multiplier tubes

• US Classifications

  • 315 - Electric lamp and discharge devices: systems