3837083

Information

• Patent Grant
• 3837083

• References
• Source

• Patent Number

  3,837,083

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1974
  50 years ago

• CPC

  • G04D7/1228 - Devices for facilitating the reading or the interpretation of the recording

• US Classifications

  • 033 - Geometrical instruments
  • 073 - Measuring and testing
  • 968 - Horology