3438195

Information

• Patent Grant
• 3438195

• References
• Source

• Patent Number

  3,438,195

• Date Filed

  Not available

• Date Issued

  Tuesday, April 15, 1969
  55 years ago

• CPC

  • G04B25/02 - by feeling Clocks or watches for blind persons

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology
  • D10 - Measuring, testing, or signalling instruments