1946890

Information

• Patent Grant
• 1946890

• References
• Source

• Patent Number

  1,946,890

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1934
  91 years ago

• CPC

  • G04B5/20 - by movements of other objects

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology