899897

Information

• Patent Grant
• 899897

• References
• Source

• Patent Number

  899,897

• Date Filed

  Not available

• Date Issued

  Tuesday, September 29, 1908
  116 years ago

• CPC

  • G04B37/087 - Protection of wrist or pocket watch cases against dust

• US Classifications

  • 368 - Horology: time measuring systems or devices