3176309

Information

• Patent Grant
• 3176309

• References
• Source

• Patent Number

  3,176,309

• Date Filed

  Not available

• Date Issued

  Tuesday, March 30, 1965
  59 years ago

• CPC

  • G07C5/12 - in graphical form
  • G01P1/125 - with recording discs

• US Classifications

  • 346 - Recorders