518971

Information

• Patent Grant
• 518971

• References
• Source

• Patent Number

  518,971

• Date Filed

  Not available

• Date Issued

  Tuesday, May 1, 1894
  130 years ago

• CPC

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

• US Classifications

  • 368 - Horology: time measuring systems or devices