1137544

Information

• Patent Grant
• 1137544

• References
• Source

• Patent Number

  1,137,544

• Date Filed

  Not available

• Date Issued

  Tuesday, April 27, 1915
  110 years ago

• CPC

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

• US Classifications

  • 084 - Music
  • 310 - Electrical generator or motor structure