2080290

Information

• Patent Grant
• 2080290

• References
• Source

• Patent Number

  2,080,290

• Date Filed

  Not available

• Date Issued

  Tuesday, May 11, 1937
  88 years ago

• CPC

  • H03J1/045 - Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like
  • Y10S116/15 - Projection

• US Classifications

  • 116 - Signals and indicators
  • 353 - Optics: image projectors