2163157

Information

• Patent Grant
• 2163157

• References
• Source

• Patent Number

  2,163,157

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1939
  85 years ago

• CPC

  • B41J19/10 - Dash-pots
  • F16K1/42 - Valve seats
  • H01J25/00 - Transit-time tubes
  • H01J25/76 - Dynamic electron-multiplier tubes

• US Classifications

  • 315 - Electric lamp and discharge devices: systems
  • 313 - Electric lamp and discharge devices