3811315

Information

• Patent Grant
• 3811315

• References
• Source

• Patent Number

  3,811,315

• Date Filed

  Not available

• Date Issued

  Tuesday, May 21, 1974
  50 years ago

• CPC

  • G04D7/1207 - only for measuring

• US Classifications

  • 073 - Measuring and testing
  • 968 - Horology