3158937

Information

• Patent Grant
• 3158937

• References
• Source

• Patent Number

  3,158,937

• Date Filed

  Not available

• Date Issued

  Tuesday, December 1, 1964
  60 years ago

• CPC

  • G04B49/02 - Sundials
  • G04B49/04 - Graduation or shaping of dials

• US Classifications

  • 033 - Geometrical instruments
  • 968 - Horology
  • D10 - Measuring, testing, or signalling instruments