2031137

Information

• Patent Grant
• 2031137

• References
• Source

• Patent Number

  2,031,137

• Date Filed

  Not available

• Date Issued

  Tuesday, February 18, 1936
  88 years ago

• CPC

  • H03G1/0011 - the device being at least one of the amplifying tubes of the amplifier

• US Classifications

  • 313 - Electric lamp and discharge devices