3693180

Information

• Patent Grant
• 3693180

• References
• Source

• Patent Number

  3,693,180

• Date Filed

  Not available

• Date Issued

  Tuesday, September 19, 1972
  52 years ago

• CPC

  • G01D15/16 - Recording elements transferring recording material
  • G01R13/08 - Electromechanical recording systems using a mechanical direct-writing method

• US Classifications

  • 346 - Recorders