3852775

Information

• Patent Grant
• 3852775

• References
• Source

• Patent Number

  3,852,775

• Date Filed

  Not available

• Date Issued

  Tuesday, December 3, 1974
  50 years ago

• CPC

  • G03B17/24 - with means for separately producing marks on the film
  • B41J2/4655 - using character templates
  • G03B17/245 - Optical means
  • G03B27/32 - Projection printing apparatus
  • G06K15/12 - by photographic printing
  • G03B2217/243 - Optical devices

• US Classifications

  • 396 - Photography