275974

Information

• Patent Grant
• 275974

• References
• Source

• Patent Number

  275,974

• Date Filed

  Not available

• Date Issued

  Tuesday, April 17, 1883
  142 years ago

• CPC

  • B63B43/20 - Feelers

• US Classifications

  • 116 - Signals and indicators
  • 114 - Ships