1312181

Information

• Patent Grant
• 1312181

• References
• Source

• Patent Number

  1,312,181

• Date Filed

  Not available

• Date Issued

  Tuesday, August 5, 1919
  105 years ago

• CPC

  • G11B15/40 - Driving record carriers otherwise than by electric motor

• US Classifications

  • 185 - Motors: spring, weight, or animal powered