2192598

Information

• Patent Grant
• 2192598

• References
• Source

• Patent Number

  2,192,598

• Date Filed

  Not available

• Date Issued

  Tuesday, March 5, 1940
  84 years ago

• CPC

  • G11B25/02 - using cylindrical record carriers
  • Y10T82/11 - Talking machine tablet

• US Classifications

  • 082 - Turning