439619

Information

• Patent Grant
• 439619

• References
• Source

• Patent Number

  439,619

• Date Filed

  Not available

• Date Issued

  Tuesday, November 4, 1890
  134 years ago

• CPC

  • H03H3/0076 - for obtaining desired frequency or temperature coefficients
  • Y10T74/113 - Valve gear trips [e.g., steam engine "Corliss" type]

• US Classifications

  • 074 - Machine element or mechanism