3810211

Information

• Patent Grant
• 3810211

• References
• Source

• Patent Number

  3,810,211

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1974
  50 years ago

• CPC

  • G03B17/52 - of the Land type
  • G03D9/025 - for colour films

• US Classifications

  • 396 - Photography
  • 273 - Amusement devices: games