3903444

Information

• Patent Grant
• 3903444

• References
• Source

• Patent Number

  3,903,444

• Date Filed

  Not available

• Date Issued

  Tuesday, September 2, 1975
  49 years ago

• CPC

  • H01J47/08 - Geiger-Müller counter tubes

• US Classifications

  • 313 - Electric lamp and discharge devices
  • 250 - Radiant energy