3431722

Information

• Patent Grant
• 3431722

• References
• Source

• Patent Number

  3,431,722

• Date Filed

  Not available

• Date Issued

  Tuesday, March 11, 1969
  55 years ago

• CPC

  • G04B19/28 - Adjustable guide marks or pointers for indicating determined points of time
  • G04B47/061 - calculating scales for indicating relationship between quantity and time

• US Classifications

  • 235 - Registers
  • 368 - Horology: time measuring systems or devices
  • 968 - Horology
  • D10 - Measuring, testing, or signalling instruments