3772975

Information

• Patent Grant
• 3772975

• References
• Source

• Patent Number

  3,772,975

• Date Filed

  Not available

• Date Issued

  Tuesday, November 20, 1973
  51 years ago

• CPC

  • G03B17/265 - specially adapted for motion picture film
  • G03D9/003 - for colour films

• US Classifications

  • 396 - Photography
  • 222 - Dispensing
  • 352 - Optics: motion pictures