1903430

Information

• Patent Grant
• 1903430

• References
• Source

• Patent Number

  1,903,430

• Date Filed

  Not available

• Date Issued

  Tuesday, April 4, 1933
  91 years ago

• CPC

  • G04B19/2571 - Independent date indicators activated by hand or by clockwork

• US Classifications

  • 040 - Card, picture, or sign exhibiting
  • 968 - Horology