3812507

Information

• Patent Grant
• 3812507

• References
• Source

• Patent Number

  3,812,507

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  50 years ago

• CPC

  • G03C7/26 - Silver halide emulsions for subtractive colour processes
  • G03C1/46 - having more than one photosensitive layer
  • G03C1/805 - characterised by stripping layers or stripping means
  • G03C7/3029 - Materials characterised by a specific arrangement of layers

• US Classifications

  • 396 - Photography