898648

Information

• Patent Grant
• 898648

• References
• Source

• Patent Number

  898,648

• Date Filed

  Not available

• Date Issued

  Tuesday, September 15, 1908
  116 years ago

• CPC

  • G04C21/38 - Adjusting the duration of signals

• US Classifications

  • 368 - Horology: time measuring systems or devices