2007153

Information

• Patent Grant
• 2007153

• References
• Source

• Patent Number

  2,007,153

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1935
  90 years ago

• CPC

  • G03B21/42 - Preventing damage to film due to abnormal operation of projector

• US Classifications

  • 352 - Optics: motion pictures
  • 089 - Ordnance
  • 181 - Acoustics
  • 353 - Optics: image projectors
  • 362 - Illumination