743789

Information

• Patent Grant
• 743789

• References
• Source

• Patent Number

  743,789

• Date Filed

  Not available

• Date Issued

  Tuesday, November 10, 1903
  121 years ago

• CPC

  • B61L5/206 - Signalling means for special purposes

• US Classifications

  • 246 - Railway switches and signals
  • 200 - Electricity: circuit makers and breakers