3672191

Information

• Patent Grant
• 3672191

• References
• Source

• Patent Number

  3,672,191

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1972
  52 years ago

• CPC

  • G06K19/067 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements
  • G06K19/10 - at least one kind of marking being used for authentication
  • Y10S70/46 - Conducting key
  • Y10T70/7791 - Keys

• US Classifications

  • 070 - Locks