642071

Information

• Patent Grant
• 642071

• References
• Source

• Patent Number

  642,071

• Date Filed

  Not available

• Date Issued

  Tuesday, January 30, 1900
  124 years ago

• CPC

  • G10K1/32 - Sounding members Clappers or other strikers

• US Classifications

  • 116 - Signals and indicators