1197910

Information

• Patent Grant
• 1197910

• References
• Source

• Patent Number

  1,197,910

• Date Filed

  Not available

• Date Issued

  Tuesday, September 12, 1916
  109 years ago

• CPC

  • G10H3/02 - using mechanical interrupters
  • G10C3/20 - involving the use of hydraulic, pneumatic, or electromagnetic means

• US Classifications

  • 084 - Music
  • 340 - Communications: electrical