404906

Information

• Patent Grant
• 404906

• References
• Source

• Patent Number

  404,906

• Date Filed

  Not available

• Date Issued

  Tuesday, June 11, 1889
  135 years ago

• CPC

  • G04C21/205 - by the hand(s) or handlike members closing the contact

• US Classifications

  • 368 - Horology: time measuring systems or devices