780287

Information

• Patent Grant
• 780287

• References
• Source

• Patent Number

  780,287

• Date Filed

  Not available

• Date Issued

  Tuesday, January 17, 1905
  120 years ago

• CPC

  • G04B37/087 - Protection of wrist or pocket watch cases against dust
  • G04B37/0025 - with cover or bottom with a spring (savonette) bench watches opening or closing with spring action G04B37/0463

• US Classifications

  • 368 - Horology: time measuring systems or devices