638210

Information

• Patent Grant
• 638210

• References
• Source

• Patent Number

  638,210

• Date Filed

  Not available

• Date Issued

  Tuesday, December 5, 1899
  125 years ago

• CPC

  • B61L19/02 - Interlocking devices having mechanical or fluid-pressure operation

• US Classifications

  • 246 - Railway switches and signals