2500443

Information

• Patent Grant
• 2500443

• References
• Source

• Patent Number

  2,500,443

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1950
  74 years ago

• CPC

  • G01F23/162 - by a liquid column
  • G04C3/0273 - the pendulum controlling contacts, thereby electromagnetically driving the gear-train or several gear-trains

• US Classifications

  • 073 - Measuring and testing
  • 968 - Horology