2578457

Information

• Patent Grant
• 2578457

• References
• Source

• Patent Number

  2,578,457

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1951
  73 years ago

• CPC

  • G11B3/66 - Erasing information
  • Y10S264/66 - Processes of reshaping and reforming

• US Classifications

  • 264 - Plastic and nonmetallic article shaping or treating: processes
  • 425 - Plastic article or earthenware shaping or treating: apparatus
  • G9B - INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER