3456758

Information

• Patent Grant
• 3456758

• References
• Source

• Patent Number

  3,456,758

• Date Filed

  Not available

• Date Issued

  Tuesday, July 22, 1969
  55 years ago

• CPC

  • B61F17/26 - by external feeding means

• US Classifications

  • 184 - Lubrication
  • 104 - Railways
  • 200 - Electricity: circuit makers and breakers
  • 246 - Railway switches and signals