455532

Information

• Patent Grant
• 455532

• References
• Source

• Patent Number

  455,532

• Date Filed

  Not available

• Date Issued

  Tuesday, July 7, 1891
  133 years ago

• CPC

  • G04C1/026 - having unipolar rotating armature

• US Classifications

  • 368 - Horology: time measuring systems or devices