1127761

Information

• Patent Grant
• 1127761

• References
• Source

• Patent Number

  1,127,761

• Date Filed

  Not available

• Date Issued

  Tuesday, February 9, 1915
  109 years ago

• CPC

  • G01R13/12 - Chemical recording

• US Classifications

  • 346 - Recorders
  • 178 - Telegraphy