3711172

Information

• Patent Grant
• 3711172

• References
• Source

• Patent Number

  3,711,172

• Date Filed

  Not available

• Date Issued

  Tuesday, January 16, 1973
  51 years ago

• CPC

  • G03B23/06 - with rotary movement
  • G06K21/02 - in which coincidence of markings is sensed mechanically

• US Classifications

  • 312 - Supports: cabinet structure