3644889

Information

• Patent Grant
• 3644889

• References
• Source

• Patent Number

  3,644,889

• Date Filed

  Not available

• Date Issued

  Tuesday, February 22, 1972
  52 years ago

• CPC

  • G06E3/003 - forming integrals of products
  • G06K9/74 - Arrangements for recognition using optical reference masks
  • G06K9/82 - using optical means in one or both functions

• US Classifications

  • 382 - Image analysis