2330416

Information

• Patent Grant
• 2330416

• References
• Source

• Patent Number

  2,330,416

• Date Filed

  Not available

• Date Issued

  Tuesday, September 28, 1943
  81 years ago

• CPC

  • G04D7/1221 - with recording

• US Classifications

  • 073 - Measuring and testing
  • 250 - Radiant energy
  • 968 - Horology