379344

Information

• Patent Grant
• 379344

• References
• Source

• Patent Number

  379,344

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1888
  137 years ago

• CPC

  • H01R43/14 - Maintenance of current collectors
  • Y10T29/5113 - Commutator
  • Y10T409/502296 - of commutator
  • Y10T409/5041 - Means for cutting arcuate surface

• US Classifications

  • 451 - Abrading
  • 029 - Metal working
  • 125 - Stone working
  • 310 - Electrical generator or motor structure
  • 409 - Gear cutting, milling, or planing