1287500

Information

• Patent Grant
• 1287500

• References
• Source

• Patent Number

  1,287,500

• Date Filed

  Not available

• Date Issued

  Tuesday, December 10, 1918
  106 years ago

• CPC

  • G03B21/20 - Lamp houses
  • G03B21/32 - Details specially adapted for motion-picture projection
  • Y10T16/767 - Weight and wheel

• US Classifications

  • 352 - Optics: motion pictures
  • 016 - Miscellaneous hardware