524959

Information

• Patent Grant
• 524959

• References
• Source

• Patent Number

  524,959

• Date Filed

  Not available

• Date Issued

  Tuesday, August 21, 1894
  130 years ago

• CPC

  • G10C3/30 - Couplers

• US Classifications

  • 084 - Music
  • 283 - Printed matter