3667948

Information

• Patent Grant
• 3667948

• References
• Source

• Patent Number

  3,667,948

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1972
  52 years ago

• CPC

  • G03F1/88 - prepared by photographic processes for production of originals simulating relief
  • G09B29/004 - Map manufacture or repair; Tear or ink or water resistant maps; Long-life maps
  • G09B29/005 - Map projections or methods associated specifically therewith

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof