1597828

Information

• Patent Grant
• 1597828

• References
• Source

• Patent Number

  1,597,828

• Date Filed

  Not available

• Date Issued

  Tuesday, August 31, 1926
  98 years ago

• CPC

  • G01R13/10 - with intermittent recording by representing the variable by the length of a stroke or by the position of a dot

• US Classifications

  • 340 - Communications: electrical
  • 346 - Recorders