2635357

Information

• Patent Grant
• 2635357

• References
• Source

• Patent Number

  2,635,357

• Date Filed

  Not available

• Date Issued

  Tuesday, April 21, 1953
  71 years ago

• CPC

  • G04B19/163 - numbers which are visible alternately from 1 to 12 and from 13 to 24 on the same dial G04B19/085
  • G09B19/12 - Clock-reading
  • Y10S116/37 - Multiple movable scales
  • Y10S116/46 - Interchangeable scales

• US Classifications

  • 434 - Education and demonstration
  • 116 - Signals and indicators
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology