637290

Information

• Patent Grant
• 637290

• References
• Source

• Patent Number

  637,290

• Date Filed

  Not available

• Date Issued

  Tuesday, November 21, 1899
  125 years ago

• CPC

  • H01H21/86 - Switches with abutting contact carried by operating part

• US Classifications

  • 178 - Telegraphy