3129998

Information

• Patent Grant
• 3129998

• References
• Source

• Patent Number

  3,129,998

• Date Filed

  Not available

• Date Issued

  Tuesday, April 21, 1964
  60 years ago

• CPC

  • G01R13/08 - Electromechanical recording systems using a mechanical direct-writing method

• US Classifications

  • 346 - Recorders