3611704

Information

• Patent Grant
• 3611704

• References
• Source

• Patent Number

  3,611,704

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1971
  53 years ago

• CPC

  • G04C21/14 - Electro-acoustic time announcement
  • G04B19/221 - mechanisms for correcting the hours hand only
  • G04B19/241 - the date is indicated by one or more hands

• US Classifications

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